Index: template-menus.php
===================================================================
RCS file: /cvs/drupal-contrib/contributions/themes/zen/zen/template-menus.php,v
retrieving revision 1.1
diff -u -r1.1 template-menus.php
--- template-menus.php	15 Feb 2008 16:22:09 -0000	1.1
+++ template-menus.php	9 Mar 2008 04:50:38 -0000
@@ -17,7 +17,7 @@
   }
 
   // If an item is a LOCAL TASK, render it as a tab
-  if ($link['type'] & MENU_IS_LOCAL_TASK) {
+  if (isset($link['type']) && $link['type'] & MENU_IS_LOCAL_TASK) {
     $link['title'] = '<span class="tab">'. check_plain($link['title']) .'</span>';
     $link['options']['html'] = TRUE;
   }