I'm creating what I thought was a simple database (and probably is for a non-newbie like me). Here's my situation: I have a main table and form for patient demographic information. I have a second table and form for referring physician information, which uses an autonumber generated key field called "PhysID". I added a combo box on the main form to select the referring physician and return the PhysID value to the corresponding field on the main table. If the physician is not listed, I'd like to be able to open the form, enter the new physician information, then post the PhysID to the main table upon exit. Could someone please help? Thank you.