Index: /FCKeditor/trunk/editor/_source/classes/fckxml_ie.js
===================================================================
--- /FCKeditor/trunk/editor/_source/classes/fckxml_ie.js	(revision 1931)
+++ /FCKeditor/trunk/editor/_source/classes/fckxml_ie.js	(revision 1932)
@@ -47,5 +47,5 @@
 			// #1426: Fallback if responseXML isn't set for some
 			// reason (e.g. improperly configured web server)
-			if ( !this.DOMDocument )
+			if ( !this.DOMDocument || this.DOMDocument.firstChild == null )
 			{
 				this.DOMDocument = FCKTools.CreateXmlObject( 'DOMDocument' ) ;