diff -r fbfdcea634a7 -r fa4c5ecb7c9a includes/clientside/tinymce/plugins/xhtmlxtras/js/element_common.js
--- a/includes/clientside/tinymce/plugins/xhtmlxtras/js/element_common.js	Thu Jan 31 22:29:07 2008 -0500
+++ b/includes/clientside/tinymce/plugins/xhtmlxtras/js/element_common.js	Sat Feb 02 11:54:16 2008 -0500
@@ -2,7 +2,7 @@
  * $Id: editor_plugin_src.js 42 2006-08-08 14:32:24Z spocke $
  *
  * @author Moxiecode - based on work by Andrew Tetlaw
- * @copyright Copyright © 2004-2007, Moxiecode Systems AB, All rights reserved.
+ * @copyright Copyright © 2004-2008, Moxiecode Systems AB, All rights reserved.
  */
 
 tinyMCEPopup.requireLangPack();
@@ -157,8 +157,8 @@
 		if(s.length > 0) {
 			tagName = element_name;
 
-			if (tinymce.isIE && element_name.indexOf('mce:') == 0)
-				element_name = element_name.substring(4).toLowerCase();
+			if (tinymce.isIE && element_name.indexOf('html:') == 0)
+				element_name = element_name.substring(5).toLowerCase();
 
 			h = '<' + tagName + ' id="#sxe_temp_' + element_name + '#">' + s + '</' + tagName + '>';