diff -up mate-panel-2.31.90/mate-panel/panel-applet-frame.c.applet-error mate-panel-2.31.90/mate-panel/mate-panel-applet-frame.c

--- mate-panel-2.31.90/mate-panel/mate-panel-applet-frame.c.applet-error	2010-06-22 19:00:28.000000000 -0400

+++ mate-panel-2.31.90/mate-panel/mate-panel-applet-frame.c	2010-09-10 13:17:37.507233002 -0400

@@ -513,6 +513,21 @@ _panel_applet_frame_set_iid (PanelApplet

 	frame->priv->iid = g_strdup (iid);

 }

+static gboolean

+in_default_panel_config (const gchar *id)

+{

+        gchar *dir;

+        gboolean result;

+

+        dir = g_strconcat (PANEL_DEFAULTS_DIR, "/applets/", id, NULL);

+        result = mateconf_client_dir_exists (panel_mateconf_get_client (),

+                                          dir, 

+                                          NULL);

+        g_free (dir);

+

+        return result;

+}

+

 void

 _mate_panel_applet_frame_activated (MatePanelAppletFrame           *frame,

 			       MatePanelAppletFrameActivating *frame_act,

@@ -527,9 +542,11 @@ mate_panel_applet_frame_activated (PanelAppl

 			   frame->priv->iid, error->message);

 		g_error_free (error);

-		mate_panel_applet_frame_loading_failed (frame->priv->iid,

-						   frame_act->panel,

-						   frame_act->id);

+                if (!in_default_panel_config (frame_act->id)) {

+		        mate_panel_applet_frame_loading_failed (frame->priv->iid,

+						           frame_act->panel,

+						           frame_act->id);

+                }

 		mate_panel_applet_frame_activating_free (frame_act);

 		gtk_widget_destroy (GTK_WIDGET (frame));