--- userpoints.module	2011-02-25 01:06:30.000000000 -0800
+++ userpoints.module.patched	2011-04-06 14:00:35.000000000 -0700
@@ -683,7 +683,7 @@ function userpoints_userpointsapi($param
         ))));
   } //if $params['status']
 
-  if ($mesg && (!empty($params['display']) || (!array_key_exists('display', $params) && variable_get(USERPOINTS_DISPLAY_MESSAGE, 1) == 1))) {
+  if ($mesg && (!empty($params['display']) || (empty($params['display']) && variable_get(USERPOINTS_DISPLAY_MESSAGE, 1) == 1))) {
     drupal_set_message($mesg);
   }
   // Call the _userpoints hook to allow modules to act after points are awarded