diff --git a/css/popupboxes.css b/css/popupboxes.css
index 5e4ed17fb..0d0c019ba 100644
--- a/css/popupboxes.css
+++ b/css/popupboxes.css
@@ -10,10 +10,11 @@
     overflow: auto; /* Enable scroll if needed */
     /*background-color: black; /* Fallback color */
     /*background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
-    background-color: var(--my-background-color);
+    background-color: rbga(var(--my-background-color), 0.4);
 }
 
-.dialog-box-container {
+.dialog-box-container,
+#log-box-container {
     display: block;
     position: absolute;
     z-index: 2;
@@ -28,14 +29,15 @@
     border: 5px solid var(--my-highlight-color);
 }
 
-.dialog-box-content {
+.dialog-box-content,
+#log-box-content {
     z-index: 2;
     background-color: var(--my-background-color);
     padding: 10px;
-    border: 5px solid var(--my-highlight-color);;
 }
 
-.dialog-box-close-button {
+.dialog-box-close-button,
+#log-box-close {
     color: #aaa;
     float: right;
     font-size: 20px;
@@ -49,7 +51,9 @@
 }
 
 .dialog-box-close-button:hover,
-.dialog-box-close-button:focus {
+.dialog-box-close-button:focus,
+#log-box-close:hover,
+#log-box-close:focus {
     color: white;
     text-decoration: none;
     cursor: pointer;
@@ -61,7 +65,7 @@
 }
 
 #purchase-server-box-content {
-    background-color: background-color: var(--my-background-color);
+    background-color: var(--my-background-color);
     margin: 15% auto; /* 15% from the top and centered */
     padding: 12px;
     border: 5px solid var(--my-highlight-color);;
diff --git a/index.html b/index.html
index 3f1f94613..0af867fcf 100644
--- a/index.html
+++ b/index.html
@@ -25,6 +25,7 @@
     <script src="utils/TravelBox.js"></script>
     <script src="utils/PurchaseRamForHomeBox.js"></script>
     <script src="utils/GameOptions.js"></script>
+    <script src="utils/LogBox.js"></script>
 	
 	<!-- Netscript -->
 	<script src="src/NetscriptWorker.js"></script>
@@ -645,6 +646,14 @@
         <a id="location-slums-heist" class="a-link-button tooltip"> Heist </a>
     </div>
    
+    <!-- Log Box -->
+    <div id="log-box-container">
+        <div id="log-box-content">
+            <span id="log-box-close"> &times; </span>
+            <p id="log-box-text"> </p>
+        </div>
+    </div>
+    
     <!-- Purchase Server Pop-up Box -->
     <div id="purchase-server-box-container" class="popup-box-container">
         <div id="purchase-server-box-content">
diff --git a/src/Constants.js b/src/Constants.js
index df92d1be9..bb07675a8 100644
--- a/src/Constants.js
+++ b/src/Constants.js
@@ -78,7 +78,7 @@ CONSTANTS = {
     AugmentationRepMultiplier: 1.5, //Used for balancing rep cost without having to readjust every value
     
     //Maximum number of log entries for a script
-    MaxLogCapacity: 40,
+    MaxLogCapacity: 50,
     
     //How much a TOR router costs
     TorRouterCost: 200000,
@@ -153,6 +153,7 @@ CONSTANTS = {
     HelpText:   'alias [name="value"]   Create aliases for Terminal commands, or list existing aliases<br>' + 
                 "analyze                Get statistics and information about current machine <br>" + 
                 "cat [message]          Display a .msg file<br>" + 
+                "check [script]         Print script logs to Terminal<br>" + 
                 "clear                  Clear all text on the terminal <br>" +
                 "cls                    See 'clear' command <br>" +
                 "connect [ip/hostname]  Connects to the machine given by its IP or hostname <br>" + 
@@ -576,7 +577,11 @@ CONSTANTS = {
     "v0.21.0<br>" + 
     "-Added basic theme functionality - All credit goes to /u/0x726564646974 who implemented the awesome feature<br>" + 
     "-Optimized Script objects, which were causing save errors when the player had too many scripts<br>" + 
-    "-Fixed bug where you could purchase Darkweb items without TOR router"
+    "-Fixed bug where you could purchase Darkweb items without TOR router<br>" + 
+    "-Slightly increased cost multiplier for Home Computer RAM<br>" + 
+    "-Changed tail command so that it brings up a display box with dynamic log contents. To get " + 
+    "old functionality where the logs are printed to the Terminal, use the new 'check' command<br>" + 
+    "-A script's logs now get cleared when the script is run<br>"+ 
     "v0.20.2<br>" + 
     "-Fixed several small bugs<br>" + 
     "-Added basic array functionality to Netscript<br>" + 
diff --git a/src/NetscriptEvaluator.js b/src/NetscriptEvaluator.js
index 464156d8b..a60fbf15e 100644
--- a/src/NetscriptEvaluator.js
+++ b/src/NetscriptEvaluator.js
@@ -40,25 +40,13 @@ function evaluate(exp, workerScript) {
                 }
                 try {
                     var res = env.get(exp.value);
-                    if (exp.index) {
-                        //If theres an index field, then this variable is supposed to be an array 
-                        //and the user needs to be indexing it
-                        if (res.constructor === Array || res instanceof Array) {
-                            var iPromise = evaluate(exp.index.value, workerScript);
-                            iPromise.then(function(i) {
-                                if (i >= res.length || i < 0) {
-                                    return reject(makeRuntimeRejectMsg(workerScript, "Out of bounds: Invalid index in [] operator"));
-                                } else {
-                                    return evaluate(res[i], workerScript);
-                                }
-                            }).then(function(res) {
-                                resolve(res);
-                            }).catch(function(e) {
-                                reject(e);
-                            });
-                        } else {
-                            reject(makeRuntimeRejectMsg(workerScript, "Trying to access a non-array variable using the [] operator"));
-                        }
+                    if (res.constructor === Array || res instanceof Array) {
+                        var evalArrayPromise = netscriptArray(exp, workerScript);
+                        evalArrayPromise.then(function(res) {
+                            resolve(res);
+                        }, function(e) {
+                            reject(e);
+                        });
                     } else {
                         resolve(res);
                     }
@@ -763,7 +751,7 @@ function evaluateHacknetNode(exp, workerScript) {
     return new Promise(function(resolve, reject) {
         setTimeout(function() {
             if (exp.index == null) {
-                if ((exp.op.type == "call" && exp.op.value == "length") ||
+                if ((exp.op.type == "call" && exp.op.func.value == "length") ||
                     (exp.op.type == "var" && exp.op.value == "length")) {
                     resolve(Player.hacknetNodes.length);
                     workerScript.scriptRef.log("hacknetnodes.length returned " + Player.hacknetNodes.length);
@@ -978,6 +966,7 @@ function runScriptFromScript(server, scriptname, workerScript, threads=1) {
                         script.numTimesHackMap      = new AllServersMap();
                         script.numTimesGrowMap      = new AllServersMap();
                         script.numTimesWeakenMap    = new AllServersMap();
+                        script.logs = [];
                         addWorkerScript(script, server);
                         resolve(true);
                         return;
@@ -1022,7 +1011,10 @@ function scriptCalculateHackingTime(server) {
 
 //The same as Player's calculateExpGain() function but takes in the server as an argument 
 function scriptCalculateExpGain(server) {
-	return (server.hackDifficulty * Player.hacking_exp_mult * 0.9);
+    if (server.baseDifficulty == null) {
+        server.baseDifficulty = server.hackDifficulty;
+    }
+	return (server.baseDifficulty * Player.hacking_exp_mult * 0.5 + 4);
 }
 
 //The same as Player's calculatePercentMoneyHacked() function but takes in the server as an argument
diff --git a/src/NetscriptFunctions.js b/src/NetscriptFunctions.js
index be368d979..16ed27b7b 100644
--- a/src/NetscriptFunctions.js
+++ b/src/NetscriptFunctions.js
@@ -1,72 +1,76 @@
 /* Netscript Functions 
  * Implementation for Netscript features */
- /*
-function netscriptAssign(exp, workerScript) {
+function netscriptArray(exp, workerScript) {
     var env = workerScript.env;
+    var arr = env.get(exp.value);
     return new Promise(function(resolve, reject) {
-        if (env.stopFlag) {return reject(workerScript);}
-        
-        if (exp.left.type != "var") {
-            return reject(makeRuntimeRejectMsg(workerScript, "Cannot assign to " + JSON.stringify(exp.left)));
-        }
-        
-        //Assigning an element in an array
-        if (exp.left.index) {
-            try {
-                var res = env.get(exp.left.value);
-                if (res.constructor === Array || res instanceof Array) {
-                    var i = 0;
-                    var iPromise = evaluate(exp.left.index.value, workerScript);
-                    iPromise.then(function(idx) {
-                        if (idx >= res.length || idx < 0) {
-                            return reject(makeRuntimeRejectMsg(workerScript, "Out of bounds: Invalid index in [] operator"));
-                        } else {
-                            //TODO evaluate exp.right here....and then determine its type and
-                            //set the type and value below accordingly
-                            i = idx;
-                            return evaluate(exp.right, workerScript);
-                        }
-                    }).then(function(right) {
-                        console.log("evaluate right with result: " + right);
-                        if (right === true || right === false) {
-                            res[i].type = "bool";
-                            res[i].value = right;
-                        } else if (!isNaN(right) || typeof right == 'number') {
-                            res[i].type = "num";
-                            res[i].value = right;
-                        } else {    //String
-                            res[i].type = "str";
-                            res[i].value = right.toString();
-                        }
-                        console.log(res);
-                        return resolve(true);
-                    }).then(function(finalRes) {
-                        resolve(finalRes);
-                    }).catch(function(e) {
-                        return reject(e);
-                    });
+        if (exp.index == null || exp.index == undefined) {
+            if ((exp.op.type == "call" && exp.op.func.value == "length") ||
+                (exp.op.type == "var" && exp.op.value == "length")) {
+                return resolve(arr.length);
+            } else if ((exp.op.type == "call" && exp.op.func.value == "clear") ||
+                       (exp.op.type == "var" && exp.op.value == "clear")) {
+                    arr.length = 0;
+                    return resolve(true);
+            } else if (exp.op.type == "call" && exp.op.func.value == "push") {
+                if (exp.op.args.length == 1) {
+                    var entry = Object.assign({}, exp.op.args[0]);
+                    arr.push(entry);
+                    return resolve(true);
                 } else {
-                    return reject(makeRuntimeRejectMsg(workerScript, "Trying to access a non-array variable using the [] operator"));
+                    return reject(makeRuntimeRejectMsg(workerScript, "Invalid number of arguments passed into array.push() command. Takes 1 argument"));
                 }
-            } catch(e) {
-                return reject(makeRuntimeRejectMsg(workerScript, e.toString()));
+            } else {
+                return reject(makeRuntimeRejectMsg(workerScript, "Invalid operation on an array"));
             }
-        } else {
-            var expRightPromise = evaluate(exp.right, workerScript);
-            expRightPromise.then(function(expRight) {
-                try {
-                    env.set(exp.left.value, expRight);
-                } catch (e) {
-                    return reject(makeRuntimeRejectMsg(workerScript, "Failed to set environment variable: " + e.toString()));
-                }
-                resolve(false); //Return false so this doesnt cause conditionals to evaluate
-            }, function(e) {
-                reject(e);
-            });
         }
+            
+        //The array is being indexed
+        var indexPromise = evaluate(exp.index.value, workerScript);
+        indexPromise.then(function(i) {
+            if (isNaN(i)) {
+                return reject(makeRuntimeRejectMsg(workerScript, "Invalid access to array. Index is not a number: " + idx));
+            } else if (i >= arr.length || i < 0) {
+                return reject(makeRuntimeRejectMsg(workerScript, "Out of bounds: Invalid index in [] operator"));
+            } else {
+                if (exp.op && exp.op.type == "call") {
+                    switch(exp.op.func.value) {
+                        case "insert":
+                            if (exp.op.args.length == 1) {
+                                var entry = Object.assign({}, exp.op.args[0]);
+                                arr.splice(i, 0, entry);
+                                return resolve(arr.length);
+                            } else {
+                                return reject(makeRuntimeRejectMsg(workerScript, "Invalid number of arguments passed into array insert() call. Takes 1 argument"));
+                            }
+                            break;
+                        case "remove":
+                            if (exp.op.args.length == 0) {
+                                return resolve(arr.splice(i, 1));
+                            } else {
+                                return reject(makeRuntimeRejectMsg(workerScript, "Invalid number of arguments passed into array remove() call. Takes 1 argument"));
+                            }
+                            break;
+                        default:
+                            return reject(makeRuntimeRejectMsg(workerScript, "Invalid call on array element: " + exp.op.func.value));
+                            break;
+                    }
+                } else {
+                    //Return the indexed element
+                    var resPromise = evaluate(arr[i], workerScript);
+                    resPromise.then(function(res) {
+                        resolve(res);
+                    }, function(e) {
+                        reject(e);
+                    });
+                }
+            }
+        }, function(e) {
+            reject(e);
+        });
     });
 }
-*/
+
 function netscriptAssign(exp, workerScript) {
     var env = workerScript.env;
     return new Promise(function(resolve, reject) {
@@ -84,7 +88,9 @@ function netscriptAssign(exp, workerScript) {
                     var i = 0;
                     var iPromise = evaluate(exp.left.index.value, workerScript);
                     iPromise.then(function(idx) {
-                        if (idx >= res.length || idx < 0) {
+                        if (isNaN(idx)) {
+                            return reject(makeRuntimeRejectMsg(workerScript, "Invalid access to array. Index is not a number: " + idx));
+                        } else if (idx >= res.length || idx < 0) {
                             return reject(makeRuntimeRejectMsg(workerScript, "Out of bounds: Invalid index in [] operator"));
                         } else {
                             //Clone res to be exp.right
diff --git a/src/NetscriptParser.js b/src/NetscriptParser.js
index 354dfc54e..07498697d 100644
--- a/src/NetscriptParser.js
+++ b/src/NetscriptParser.js
@@ -216,8 +216,8 @@ function Parser(input) {
         unexpected();
     }
     
-    function parse_array() {        
-        //Declaring a new array with Array[1,2,3]
+    //Declaring a new array with Array[1,2,3]
+    function parse_arraydecl() {        
         var array = delimited("[", "]", ",", parse_expression);
         return {type: "var", 
                 value: "array",
@@ -225,14 +225,38 @@ function Parser(input) {
                 };
     }
     
+    //Parsing an operation on an array, such as accessing, push(), etc.
+    //tok is a reference to a token of type var
+    function parse_arrayop(tok) {
+        //Returns a variable node except with an extra "index" field so 
+        //we can identify it as an index
+        if (is_punc("[")) {
+            var index = parse_arrayindex();
+            if (index.type != "index") {
+                unexpected();
+            }
+        }
+        
+        var op = null;
+        if (is_punc(".")) {
+            checkPuncAndSkip(".");
+            op = maybe_call(function() {
+                var callTok = input.next();
+                return callTok;
+            });
+        }
+        tok.index = index;
+        tok.op = op; //Will be null if no operation
+        return tok;
+    }
+    
     function parse_arrayindex() {
         var index = delimited("[", "]", ";", parse_expression);
         var val = 0;
-        if (index.length == 1 && (index[0].type == "num" || index[0].type == "var")) {
+        if (index.length == 1) {
             val = index[0];
         } else {
-            val = 0;
-            console.log("WARNING: Extra indices passed in")
+            unexpected();
         }
             
         return { type: "index", value: val };
@@ -267,16 +291,9 @@ function Parser(input) {
             
             var tok = input.next();
             if (tok.type == "var" && tok.value == "hacknetnodes") return parse_hacknetnodes();
-            if (tok.type == "var" && tok.value == "Array") return parse_array();
-            if (tok.type == "var" && is_punc("[")) {
-                //Returns a variable node except with an extra "index" field so 
-                //we can identify it as an index
-                var index = parse_arrayindex();
-                if (index.type != "index") {
-                    unexpected();
-                }
-                tok.index = index;
-                return tok;
+            if (tok.type == "var" && tok.value == "Array") return parse_arraydecl();
+            if (tok.type == "var" && (is_punc("[") || is_punc("."))) {
+                return parse_arrayop(tok);
             }
             if (tok.type == "var" || tok.type == "num" || tok.type == "str")
                 return tok;
diff --git a/src/NetscriptWorker.js b/src/NetscriptWorker.js
index 3a4935fd8..6b36ee926 100644
--- a/src/NetscriptWorker.js
+++ b/src/NetscriptWorker.js
@@ -31,7 +31,7 @@ function runScriptsLoop() {
 		if (workerScripts[i].running == false && workerScripts[i].env.stopFlag == false) {
 			try {
 				var ast = Parser(Tokenizer(InputStream(workerScripts[i].code)));
-                //console.log(ast);
+                console.log(ast);
 			} catch (e) {
                 console.log("Error parsing script: " + workerScripts[i].name);
                 dialogBoxCreate("Syntax ERROR in " + workerScripts[i].name + ":<br>" +  e);
diff --git a/src/Player.js b/src/Player.js
index 20c292852..97a7eb545 100644
--- a/src/Player.js
+++ b/src/Player.js
@@ -254,7 +254,11 @@ PlayerObject.prototype.calculatePercentMoneyHacked = function() {
 //The formula is:
 //  difficulty * requiredLevel * hacking_multiplier
 PlayerObject.prototype.calculateExpGain = function() {
-    return (this.getCurrentServer().hackDifficulty * this.hacking_exp_mult * 0.9);
+    var s = this.getCurrentServer();
+    if (s.baseDifficulty == null) {
+        s.baseDifficulty = s.hackDifficulty;
+    }
+    return (s.baseDifficulty * this.hacking_exp_mult * 0.5 + 4);
 }
 
 //Hack/Analyze a server. Return the amount of time the hack will take. This lets the Terminal object know how long to disable itself for
diff --git a/src/Terminal.js b/src/Terminal.js
index 74febe18c..0ed9c90d2 100644
--- a/src/Terminal.js
+++ b/src/Terminal.js
@@ -616,6 +616,29 @@ var Terminal = {
                     }
                 }
                 post("Error: No such file " + filename);
+                break;
+            case "check":
+                if (commandArray.length != 2) {
+                    post("Incorrect number of arguments. Usage: check [script]");
+                } else {
+                    var scriptName = commandArray[1];
+                    
+                    //Can only check script files
+                    if (scriptName.endsWith(".script") == false) {
+                        post("Error: check can only be called on .script files (filename must end with .script)"); return;
+                    }
+                    
+                    //Check that the script exists on this machine
+                    var currScripts = Player.getCurrentServer().scripts;
+                    for (var i = 0; i < currScripts.length; ++i) {
+                        if (scriptName == currScripts[i].filename) {
+                            currScripts[i].displayLog();
+                            return;
+                        }
+                    }
+                    
+                    post("Error: No such script exists");
+                }
                 break;
 			case "clear":
 			case "cls":
@@ -947,7 +970,7 @@ var Terminal = {
                     var currScripts = Player.getCurrentServer().scripts;
                     for (var i = 0; i < currScripts.length; ++i) {
                         if (scriptName == currScripts[i].filename) {
-                            currScripts[i].displayLog();
+                            logBoxCreate(currScripts[i]);
                             return;
                         }
                     }
@@ -959,7 +982,8 @@ var Terminal = {
                 //todo support theme saving                
                 var args = commandArray[1] ? commandArray[1].split(" ") : [];
                 if(args.length != 1 && args.length != 3) {
-                    post("Incorrect number of arguments. Usage: theme [default|muted|solarized] | [background color hex] [text color hex] [highlight color hex]");
+                    post("Incorrect number of arguments.");
+                    post("Usage: theme [default|muted|solarized] | [background color hex] [text color hex] [highlight color hex]");
                 }else if(args.length == 1){
                     var themeName = args[0];
                     if(themeName == "default"){
@@ -1244,6 +1268,9 @@ var Terminal = {
                     script.numTimesGrowMap      = new AllServersMap();
                     script.numTimesWeakenMap    = new AllServersMap();
                     
+                    //Clear logs
+                    script.logs = [];
+                    
 					addWorkerScript(script, server);
 					return;
 				}
diff --git a/src/engine.js b/src/engine.js
index 92f77ff39..0de7031fe 100644
--- a/src/engine.js
+++ b/src/engine.js
@@ -545,6 +545,10 @@ var Engine = {
                 displayCreateProgramContent();
             }
             
+            if (logBoxOpened) {
+                logBoxUpdateText();
+            }
+            
             Engine.Counters.updateDisplays = 3;
         }
         
diff --git a/utils/DialogBox.js b/utils/DialogBox.js
index 50e9d72f7..cb24770d4 100644
--- a/utils/DialogBox.js
+++ b/utils/DialogBox.js
@@ -2,22 +2,6 @@
 dialogBoxes = [];
 
 //Close dialog box when clicking outside
-/*
-$(document).click(function(event) {
-    if (dialogBoxOpened) {
-        if (!$(event.target).closest('.dialog-box-container').length){
-            --dialogBoxCount;
-            dialogBoxes.splice(0, 1);
-            $(".dialog-box-container").remove();
-            
-            if (dialogBoxes.length == 0) {
-                dialogBoxOpened = false;
-            } else {
-                dialogBoxes[0].style.display +
-            }
-        }
-    }
-});*/
 $(document).click(function(event) {
     if (dialogBoxOpened && dialogBoxes.length >= 1) {
         if (!$(event.target).closest(dialogBoxes[0]).length){
@@ -34,18 +18,6 @@ $(document).click(function(event) {
 
 
 //Dialog box close buttons
-/*
-$(document).on('click', '.dialog-box-close-button', function( event ) {
-    console.log("clicked close button");
-    if (dialogBoxOpened) {
-        $(this).closest('.dialog-box-container').remove();
-        --dialogBoxCount;
-        if (dialogBoxes.length == 0) {
-            dialogBoxOpened = false;
-        }
-    }
-});
-*/
 $(document).on('click', '.dialog-box-close-button', function( event ) {
     if (dialogBoxOpened && dialogBoxes.length >= 1) {
         dialogBoxes[0].remove();
diff --git a/utils/LogBox.js b/utils/LogBox.js
new file mode 100644
index 000000000..90c479894
--- /dev/null
+++ b/utils/LogBox.js
@@ -0,0 +1,58 @@
+/* Log Box */
+
+//Close box when clicking outside
+$(document).click(function(event) {
+    if (logBoxOpened) {        
+        if ( $(event.target).closest("#log-box-container").get(0) == null ) {         
+            logBoxClose();         
+        }
+    }
+});
+ 
+ 
+function logBoxInit() {
+    var closeButton = document.getElementById("log-box-close");
+    logBoxClose();
+    
+    //Close Dialog box
+    closeButton.addEventListener("click", function() {
+        logBoxClose();
+        return false;
+    });
+};
+
+document.addEventListener("DOMContentLoaded", logBoxInit, false);
+
+logBoxClose = function() {
+    logBoxOpened = false;
+    var logBox = document.getElementById("log-box-container");
+    logBox.style.display = "none";
+}
+
+logBoxOpen = function() {
+    logBoxOpened = true;
+    
+    var logBox = document.getElementById("log-box-container");
+    logBox.style.display = "block";
+}
+
+
+var logBoxOpened = false;
+var logBoxCurrentScript = null;
+//ram argument is in GB
+logBoxCreate = function(script) {
+    logBoxCurrentScript = script;
+    logBoxOpen();
+    logBoxUpdateText();
+}
+
+logBoxUpdateText = function() {
+    var txt = document.getElementById("log-box-text");
+    if (logBoxCurrentScript && logBoxOpened && txt) {
+        txt.innerHTML = logBoxCurrentScript.filename + ":<br>";
+        for (var i = 0; i < logBoxCurrentScript.logs.length; ++i) {
+            txt.innerHTML += logBoxCurrentScript.logs[i];
+            txt.innerHTML += "<br>";
+        }
+    }
+}
\ No newline at end of file
diff --git a/utils/PurchaseRamForHomeBox.js b/utils/PurchaseRamForHomeBox.js
index 5f0bbc9b8..096451382 100644
--- a/utils/PurchaseRamForHomeBox.js
+++ b/utils/PurchaseRamForHomeBox.js
@@ -36,7 +36,7 @@ purchaseRamForHomeBoxCreate = function() {
     //Calculate cost
     //Have cost increase by some percentage each time RAM has been upgraded
     var cost = currentRam * CONSTANTS.BaseCostFor1GBOfRamHome;
-    var mult = Math.pow(1.40, numUpgrades);
+    var mult = Math.pow(1.43, numUpgrades);
     cost = cost * mult;
     
     purchaseRamForHomeBoxSetText("Would you like to purchase additional RAM for your home computer? <br><br>" +