Index: /FCKeditor/trunk/_whatsnew.html
===================================================================
--- /FCKeditor/trunk/_whatsnew.html	(revision 350)
+++ /FCKeditor/trunk/_whatsnew.html	(revision 351)
@@ -144,4 +144,6 @@
 		<li>[<a target="_blank" href="http://dev.fckeditor.net/ticket/295">#295</a>] [<a target="_blank" href="http://dev.fckeditor.net/ticket/510">#510</a>] Corrected some
 			path resolution issues with the File Browser connector for ColdFusion.</li>
+		<li>[<a target="_blank" href="http://dev.fckeditor.net/ticket/239">#239</a>] The &lt;xml&gt;
+			tag will not anymore cause troubles.</li>
 	</ul>
 	<h3>
Index: /FCKeditor/trunk/editor/_source/internals/fck.js
===================================================================
--- /FCKeditor/trunk/editor/_source/internals/fck.js	(revision 350)
+++ /FCKeditor/trunk/editor/_source/internals/fck.js	(revision 351)
@@ -298,5 +298,5 @@
 		// IE doesn't support <abbr> and it breaks it. Let's protect it.
 		if ( FCKBrowserInfo.IsIE )
-			sTags += sTags.length > 0 ? '|ABBR' : 'ABBR' ;
+			sTags += sTags.length > 0 ? '|ABBR|XML' : 'ABBR|XML' ;
 
 		var oRegex ;