Index: modules/forum/forum.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/forum/forum.module,v
retrieving revision 1.448.2.7
diff -p -u -p -r1.448.2.7 forum.module
--- modules/forum/forum.module	3 Jun 2009 18:27:48 -0000	1.448.2.7
+++ modules/forum/forum.module	27 Oct 2009 20:41:08 -0000
@@ -498,8 +498,9 @@ function forum_get_forums($tid = 0) {
 
     $counts = array();
 
-    $sql = "SELECT r.tid, COUNT(n.nid) AS topic_count, SUM(l.comment_count) AS comment_count FROM {node} n INNER JOIN {node_comment_statistics} l ON n.nid = l.nid INNER JOIN {term_node} r ON n.vid = r.vid WHERE n.status = 1 GROUP BY r.tid";
+    $sql = "SELECT r.tid, n.nid AS nid, l.comment_count AS nid_comment_count FROM {node} n INNER JOIN {node_comment_statistics} l ON n.nid = l.nid INNER JOIN {term_node} r ON n.vid = r.vid WHERE n.status = 1 GROUP BY r.tid, n.nid, l.comment_count"; 
     $sql = db_rewrite_sql($sql);
+    $sql = "SELECT tid, COUNT(nid) AS topic_count, SUM(nid_comment_count) AS comment_count FROM ($sql) AS forum_content_list GROUP BY tid";
     $_counts = db_query($sql);
     while ($count = db_fetch_object($_counts)) {
       $counts[$count->tid] = $count;