Index: comment.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/comment/comment.module,v
retrieving revision 1.485
diff -u -F^f -r1.485 comment.module
--- comment.module	5 Sep 2006 02:36:02 -0000	1.485
+++ comment.module	7 Sep 2006 16:53:07 -0000
@@ -1116,6 +1116,11 @@ function theme_comment_admin_overview($f
  */
 function comment_multiple_delete_confirm() {
   $edit = $_POST;
+  
+  if (!$edit['comments']) {
+    form_set_error('', t('Please select one or more comments to perform the update on.'));
+    drupal_goto('admin/content/comment');
+  }
 
   $form['comments'] = array('#prefix' => '<ul>', '#suffix' => '</ul>', '#tree' => TRUE);
   // array_filter() returns only elements with actual values