Index: src/main/resources/com/xpn/xwiki/wysiwyg/public/Wysiwyg.css
===================================================================
--- src/main/resources/com/xpn/xwiki/wysiwyg/public/Wysiwyg.css	(revision 12766)
+++ src/main/resources/com/xpn/xwiki/wysiwyg/public/Wysiwyg.css	(working copy)
@@ -184,6 +184,10 @@
 .xDialogBox .xTitleBar {
   text-align:center;
 }
+* html .xDialogBox .xTitleBar {
+  /* IE6 */  
+  width:100%;
+}
 
 .xDialogBox .xTitleBar .gwt-PushButton {
   position: absolute;
@@ -201,4 +205,8 @@
   border-style:dashed;
   filter:alpha(opacity = 50) !important; /* IE */
   opacity:0.5 !important; /* non-IE */	
+}
+* html .gwt-PopupPanel .popupContent{
+  /* IE6 */
+  width: 1px; 
 }
\ No newline at end of file