Index: theme/theme.inc
===================================================================
--- theme/theme.inc	(revision 3736)
+++ theme/theme.inc	(working copy)
@@ -222,7 +222,12 @@
  */
 function theme_views_view_field($view, $field, $row) {
   // Reference safe for PHP 4:
-  return $view->field[$field->options['id']]->advanced_render($row);
+  if (!is_object($view->field[$field->options['id']])) {
+    return $view->field[$field->field_alias]->advanced_render($row);
+  }
+  else {
+    return $view->field[$field->options['id']]->advanced_render($row);
+  }
 }
 
 /**