rem: gtk_tree_view_set_reorderable (GTK_TREE_VIEW (treeview), FALSE);
add: totem_playlist_set_reorderable (playlist, FALSE);
context: drag_end_cb (GtkWidget *treeview, GdkDragContext *context, gpointer data){	TotemPlaylist *playlist = (TotemPlaylist *)data;	playlist->_priv->drag_started = FALSE;	gtk_tree_view_set_reorderable (GTK_TREE_VIEW (treeview), FALSE); 	gtk_drag_dest_set (treeview, GTK_DEST_DEFAULT_ALL, target_table,        		G_N_ELEMENTS (target_table), GDK_ACTION_COPY);	g_signal_handlers_unblock_by_func (treeview, (GFunc) drop_cb, data);	return;}