diff -r fbfdcea634a7 -r fa4c5ecb7c9a includes/clientside/tinymce/plugins/xhtmlxtras/js/abbr.js
--- a/includes/clientside/tinymce/plugins/xhtmlxtras/js/abbr.js	Thu Jan 31 22:29:07 2008 -0500
+++ b/includes/clientside/tinymce/plugins/xhtmlxtras/js/abbr.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.
  */
 
 function init() {
@@ -13,7 +13,7 @@
 }
 
 function insertAbbr() {
-	SXE.insertElement(tinymce.isIE ? 'mce:abbr' : 'abbr');
+	SXE.insertElement(tinymce.isIE ? 'html:abbr' : 'abbr');
 	tinyMCEPopup.close();
 }