Index: admin_menu.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/admin_menu/admin_menu.module,v
retrieving revision 1.10.4.8
diff -u -p -r1.10.4.8 admin_menu.module
--- admin_menu.module	10 Oct 2007 10:00:27 -0000	1.10.4.8
+++ admin_menu.module	2 Nov 2007 16:32:26 -0000
@@ -138,9 +138,11 @@ function _admin_menu_get_children(&$admi
       else {
         // remove child menu item from parent's children list
         $parent_id = $_menu['items'][$child]['pid'];
-        $child_key = array_search($child, $_menu['items'][$parent_id]['children']);
-        if ($child_key !== false) {
-          unset($admin_items[$parent_id]['children'][$child_key]);
+        if (is_array($_menu['items'][$parent_id]['children'])) {
+          $child_key = array_search($child, $_menu['items'][$parent_id]['children']);
+          if ($child_key !== false) {
+            unset($admin_items[$parent_id]['children'][$child_key]);
+          }
         }
       }
     }