Index: /FCKeditor/trunk/editor/_source/classes/fckeditingarea.js
===================================================================
--- /FCKeditor/trunk/editor/_source/classes/fckeditingarea.js	(revision 606)
+++ /FCKeditor/trunk/editor/_source/classes/fckeditingarea.js	(revision 607)
@@ -170,13 +170,7 @@
 	if ( FCKBrowserInfo.IsIE )
 	{
-		// The fiddling with UNSELECTABLE is a trick for fixing an IE browser bug, don't remove.
-		// See #523 for information about the bug.
-		oDoc.body.unselectable = "on" ;
+		oDoc.body.disabled = true ;
 		oDoc.body.contentEditable = true ;
-		var enableFunc = function()
-		{
-			oDoc.body.removeAttribute("unselectable") ;
-		}
-		setTimeout( enableFunc, 1 ) ;
+		oDoc.body.disabled = false ;
 
 		/* The following commands don't throw errors, but have no effect.