What do you mean they conflict with your old Autonumbers? Let me see if I understand you... you had some records (lets say IDs 1 to 10). You deleted that ID field and then added another one. Now you're being reassigned new IDs that just happen to relate to other records in your database (someone already has ID 3 for example). In this case, you're going to have to just WASTE a bunch of Autonumbers. Insert about 100 blank records, then delete them. That should waste IDs 1 to 100. Of course you SHOULD have deleted all of the related records along with those IDs in the first place, but that's OK. Does this help?