Index: wp-admin/includes/menu.php
===================================================================
--- wp-admin/includes/menu.php	(revision 16464)
+++ wp-admin/includes/menu.php	(working copy)
@@ -205,11 +205,11 @@
 	unset($menu_order, $default_menu_order);
 }
 
-$menu = add_menu_classes($menu);
-
 if ( !user_can_access_admin_page() ) {
 	do_action('admin_page_access_denied');
 	wp_die( __('You do not have sufficient permissions to access this page.') );
 }
 
+$menu = add_menu_classes($menu);
+
 ?>
\ No newline at end of file