Index: viewreference.module
===================================================================
--- viewreference.module	(revision 24)
+++ viewreference.module	(working copy)
@@ -562,9 +562,14 @@
   $view->set_display($display_key);
   $display_title = $view->get_title();
 
-  if (!$display_title) {
-    // No title, we have to construct a title.
-    $display_title = ucfirst($view_name) . ' ' . strtolower($view->display[$display_key]->display_title);
+  if (!$display_title && isset($view->display[$display_key])) {
+    if (is_object($view->display[$display_key])) {
+      // No title, we have to construct a title.
+      $display_title = ucfirst($view_name) . ' ' . strtolower($view->display[$display_key]->display_title);
+    }
+    else {
+      $display_title = '';
+    }
   }
 
   if ($append_id) {
@@ -811,4 +816,4 @@
       $data[$table_alias][$field['field_name'] . '_view_id']['filter']['handler'] = 'views_handler_filter_many_to_one_content';
       return $data;
 
-*/
\ No newline at end of file
+*/