Ticket #7922: 7922.patch

_source/plugins/button/plugin.js

@@ -89 +89 @@
                         },
                         execute : function()
                         {
-                                this.button.click( editor );
+                                // IE 6 needs some time before execution (#7922)
+                                if ( CKEDITOR.env.ie && CKEDITOR.env.version < 7 )
+                                        CKEDITOR.tools.setTimeout( function(){ this.button.click( editor ); }, 0, this );
+                                else
+                                        this.button.click( editor );
                         }
                 };