Index: includes/module.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/module.inc,v
retrieving revision 1.116
diff -u -p -r1.116 module.inc
--- includes/module.inc	14 Apr 2008 17:48:33 -0000	1.116
+++ includes/module.inc	15 Apr 2008 01:54:01 -0000
@@ -227,7 +227,7 @@ function _module_build_dependencies($fil
  *   TRUE if the module is both installed and enabled.
  */
 function module_exists($module) {
-  $list = module_list();
+  $list = module_list(TRUE, FALSE);
   return array_key_exists($module, $list);
 }