--- index.php	2011-09-21 16:44:44.000000000 +0100
+++ index.fix.php	2012-01-17 13:46:17.000000000 +0000
@@ -95,7 +95,7 @@
 
 if ($prof_fields = $DB->get_records('user_info_field')) {
     foreach ($prof_fields as $prof_field) {
-        $PRF_FIELDS[] = 'profile_field_'.$prof_field->shortname;
+        $PRF_FIELDS[] = $prof_field->shortname;
     }
 }
 unset($prof_fields);