rem: (totem->gc, "/apps/totem/mediadev", NULL));
add: (totem->gc, GCONF_PREFIX"mediadev", NULL));
context: mediadev_changed_cb (GConfClient *client, guint cnxn_id,		GConfEntry *entry, gpointer user_data){	Totem *totem = (Totem *) user_data;	GtkWidget *item;	item = glade_xml_get_widget (totem->xml, "custom3");	g_signal_handlers_disconnect_by_func (G_OBJECT (item),			on_combo_entry1_changed, totem);	totem_cd_selection_set_device (TOTEM_CD_SELECTION (item),			gconf_client_get_string			(totem->gc, "/apps/totem/mediadev", NULL));	g_signal_connect (G_OBJECT (item), "device-changed",			G_CALLBACK (on_combo_entry1_changed), totem);}