Index: fullscreen.php
===================================================================
RCS file: /cvsroot/moodle/moodle/lib/editor/htmlarea/popups/Attic/fullscreen.php,v
retrieving revision 1.6
diff -u -r1.6 fullscreen.php
--- fullscreen.php      9 Apr 2007 20:40:22 -0000       1.6
+++ fullscreen.php      28 Nov 2008 13:54:34 -0000
@@ -34,7 +34,9 @@
     } else {
       new_script.src = "../" + script.src;
     }
-    head.appendChild(new_script);
+    if (navigator.appVersion.indexOf("MSIE") > 0 && script.src.indexOf("yui/event/event") == false) {
+      head.appendChild(new_script);
+    }
   }
 }
 </script>