diff --git a/include/ITexture.h b/include/ITexture.h
index 9be2677..9fe7a7c 100644
--- a/include/ITexture.h
+++ b/include/ITexture.h
@@ -195,13 +195,17 @@ public:
 	//! Lock function.
 	/** Locks the Texture and returns a pointer to access the
 	pixels. After lock() has been called and all operations on the pixels
-	are done, you must call unlock().
-	Locks are not accumulating, hence one unlock will do for an arbitrary
-	number of previous locks. You should avoid locking different levels without
-	unlocking in between, though, because only the last level locked will be
-	unlocked.
+	are done, you must call unlock(). Locks are not accumulating, hence one 
+	unlock will do for an arbitrary number of previous locks. You should avoid 
+	locking different levels without unlocking in between, because only the 
+	last level locked will be unlocked.
+
 	The size of the i-th mipmap level is defined as max(getSize().Width>>i,1)
-	and max(getSize().Height>>i,1)
+	and max(getSize().Height>>i,1).
+	Except for textures of EDT_SOFTWARE driver which returns data for 
+	getOriginalSize(). Reason: Both original sized and modified sized textures are used 
+	in that driver depending on whether the texture is used in 2d or 3d.
+
 	\param mode Specifies what kind of changes to the locked texture are
 	allowed. Unspecified behavior will arise if texture is written in read
 	only mode or read from in write only mode.