Index: sites/all/modules/userpoints/userpoints.module
===================================================================
--- sites/all/modules/userpoints/userpoints.module	(Revision 1574)
+++ sites/all/modules/userpoints/userpoints.module	(Arbeitskopie)
@@ -1669,6 +1669,9 @@ function userpoints_my_userpoints() {
  *  if no vocab exists it will create one
  */
 function userpoints_get_vid() {
+  if (!module_exists('taxonomy')) {
+    return false;
+  }
   //code lovingly inspired by the image.module w/ code by drewish
   $vid = variable_get(USERPOINTS_CATEGORY_DEFAULT_VID, '');
   if (empty($vid) || !taxonomy_get_vocabulary($vid)) {