Index: /CKEditor/trunk/CHANGES.html
===================================================================
--- /CKEditor/trunk/CHANGES.html	(revision 4527)
+++ /CKEditor/trunk/CHANGES.html	(revision 4528)
@@ -75,4 +75,5 @@
 		<li><a href="http://dev.fckeditor.net/ticket/4536">#4536</a> : Fixed keyboard navigation doesn't work at all in IE quirks mode.</li>
 		<li><a href="http://dev.fckeditor.net/ticket/4584">#4584</a> : Fixed updated link Target field is not updating when updating to certian values.</li>
+		<li><a href="http://dev.fckeditor.net/ticket/4603">#4603</a> : Fixed unable to disable submenu items in contextmenu.</li>
 	<h3>
 		CKEditor 3.0.1</h3>
Index: /CKEditor/trunk/_source/plugins/menu/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/menu/plugin.js	(revision 4527)
+++ /CKEditor/trunk/_source/plugins/menu/plugin.js	(revision 4528)
@@ -68,9 +68,9 @@
 				var menu = this._.subMenu,
 					item = this.items[ index ],
-					subItems = item.getItems && item.getItems();
+					subItemDefs = item.getItems && item.getItems();
 
 				// If this item has no subitems, we just hide the submenu, if
 				// available, and return back.
-				if ( !subItems )
+				if ( !subItemDefs )
 				{
 					this._.panel.hideChild();
@@ -90,7 +90,12 @@
 
 				// Add all submenu items to the menu.
-				for ( var itemName in subItems )
-				{
-					menu.add( this.editor.getMenuItem( itemName ) );
+				for ( var subItemName in subItemDefs )
+				{
+					var subItem = this.editor.getMenuItem( subItemName );
+					if ( subItem )
+					{
+						subItem.state = subItemDefs[ subItemName ];
+						menu.add( subItem );
+					}
 				}