Index: modules/forum/forum.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/forum/forum.module,v
retrieving revision 1.571
diff -u -p -r1.571 forum.module
--- modules/forum/forum.module	3 Aug 2010 02:02:02 -0000	1.571
+++ modules/forum/forum.module	6 Aug 2010 21:01:24 -0000
@@ -977,7 +977,11 @@ function template_preprocess_forums(&$va
     }
   }
   drupal_set_breadcrumb($breadcrumb);
-  drupal_set_title($title);
+
+  // Set page title only if viewing a forum or forum container.
+  if ($variables['tid']) {
+    drupal_set_title($title);
+  }
 
   if ($variables['forums_defined'] = count($variables['forums']) || count($variables['parents'])) {
     if (!empty($variables['forums'])) {