Index: modules/forum/forum.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/forum/forum.module,v
retrieving revision 1.448
diff -u -p -r1.448 forum.module
--- modules/forum/forum.module	30 Jan 2008 15:35:47 -0000	1.448
+++ modules/forum/forum.module	6 Feb 2008 03:24:29 -0000
@@ -949,5 +949,5 @@ function _forum_get_topic_order($sortby)
 
 function _forum_get_topic_order_sql($sortby) {
   $order = _forum_get_topic_order($sortby);
-  return $order['field'] .' '. $order['sort'];
+  return $order['field'] .' '. strtoupper($order['sort']);
 }