=== modified file 'modules/overlay/overlay.module'
--- modules/overlay/overlay.module	24 Jul 2010 17:28:26 -0000	1.25
+++ modules/overlay/overlay.module	27 Jul 2010 20:00:00 -0000
@@ -328,8 +328,7 @@ function overlay_preprocess_page(&$variables) {
     array_shift($overlay_breadcrumb);
     $variables['breadcrumb'] = theme('breadcrumb', array('breadcrumb' => $overlay_breadcrumb));

-    $variables['tabs'] = '';
-    $variables['primary_local_tasks'] = '';
+    unset($variables['tabs'][0]);
   }
 }