Dbpriv - Dbpriveleges...

We are using dbpriv to grant groups of users specific priveleges. However, sometimes dbpriv does not work properly and that is (I think) because it uses tab_id instead of tab_name. Of course some of these tables change tab_id as they are recreated and so on... Did anyone notice this and has this been solved or improved...? Thanks in advance. Chabane.