? includes/panels/access
Index: content.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/cck/Attic/content.module,v
retrieving revision 1.301.2.119
diff -u -p -r1.301.2.119 content.module
--- content.module	9 Jun 2010 01:34:35 -0000	1.301.2.119
+++ content.module	18 Jun 2010 17:46:36 -0000
@@ -223,7 +223,10 @@ function content_views_api() {
  * Implementation of hook_ctools_plugin_directory().
  */
 function content_ctools_plugin_directory($module, $plugin) {
-  if ($module == 'ctools' && $plugin == 'content_types') {
+  $dir = 'includes/panels/' . $plugin;
+  $path = drupal_get_path('module', 'content') . '/' . $dir;
+
+  if ($module == 'ctools' && file_exists($path)) {
     return 'includes/panels/' . $plugin;
   }
 }