Index: panels.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/panels/panels.module,v
retrieving revision 1.27.2.5
diff -u -p -r1.27.2.5 panels.module
--- panels.module	17 Nov 2008 20:46:01 -0000	1.27.2.5
+++ panels.module	30 Jan 2009 00:19:26 -0000
@@ -512,7 +512,7 @@ class panels_display {
         $id[] = substr($pid, 4);
       }
     }
-    $next_id = end($id);
+    $next_id = max($id);
     return ++$next_id;
   }
 }