--- privatemsg.module	2008-03-20 17:39:48.000000000 +0800
+++ privatemsg.module	2008-03-20 19:59:36.000000000 +0800
@@ -806,7 +806,7 @@ function privatemsg_cur_folder_form($fol
   );
   $filter_types = array('all types' => t('All types'));
   while ($t = db_fetch_object($result)) {
-    $type = check_plain($t->type);
+    $type = t(check_plain($t->type));
     $types[$type] = $type;
     $filter_types[$type] = $type;
   }
@@ -894,7 +894,7 @@ function privatemsg_list_form($messages,
       '#type' => 'checkbox',
     );
     $form['messages'][$message->id]['type'] = array(
-      '#value' => check_plain($message->type),
+      '#value' => (check_plain($message->type) != '' ? t(check_plain($message->type)) : ''),
     );
     $form['messages'][$message->id]['user'] = array(
       '#type' => 'value',