Index: includes/form.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/form.inc,v
retrieving revision 1.272
diff -u -p -r1.272 form.inc
--- includes/form.inc	6 May 2008 12:18:45 -0000	1.272
+++ includes/form.inc	23 Jun 2008 20:21:34 -0000
@@ -852,6 +852,7 @@ function form_builder($form_id, $form, &
   }
 
   if (isset($form['#type']) && $form['#type'] == 'form') {
+    $cache = NULL;
     $complete_form = $form;
     if (!empty($form['#programmed'])) {
       $form_state['submitted'] = TRUE;
Index: modules/comment/comment.pages.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/comment/comment.pages.inc,v
retrieving revision 1.5
diff -u -p -r1.5 comment.pages.inc
--- modules/comment/comment.pages.inc	3 Jun 2008 16:30:20 -0000	1.5
+++ modules/comment/comment.pages.inc	23 Jun 2008 20:21:34 -0000
@@ -56,7 +56,7 @@ function comment_reply($node, $pid = NUL
 
   if (user_access('access comments')) {
     // The user is previewing a comment prior to submitting it.
-    if ($op == t('Preview comment')) {
+    if ($op == t('Preview')) {
       if (user_access('post comments')) {
         $output .= comment_form_box(array('pid' => $pid, 'nid' => $node->nid), NULL);
       }