Index: vud.theme.inc
===================================================================
--- vud.theme.inc	(revision 4096)
+++ vud.theme.inc	(working copy)
@@ -150,7 +150,7 @@
     'tag' => $variables['tag'],
   );
   $criteria = $base_criteria + $uid;
-  $user_vote = votingapi_select_single_vote_value($criteria);
+  $user_vote = user_access('user vote up/down') ? votingapi_select_single_vote_value($criteria) : 0;
 
   if ($user_vote > 0) {
     $variables['class_up'] = 'up-active';