Index: FCKeditor/trunk/fckeditor.js
===================================================================
--- FCKeditor/trunk/fckeditor.js	(revision 7665)
+++ FCKeditor/trunk/fckeditor.js	(revision 7666)
@@ -305,5 +305,5 @@
 	if ( /*@cc_on!@*/false && sAgent.indexOf("mac") == -1 )
 	{
-		var sBrowserVersion = navigator.appVersion.match(/MSIE (.\..)/)[1] ;
+		var sBrowserVersion = navigator.appVersion.match(/MSIE ([\d.]+)/)[1] ;
 		return ( sBrowserVersion >= 5.5 ) ;
 	}