OK I think I figured out what happened. I believe I deleted a field in my base table and forgot to update my views. When I got the first error I thought maybe my relationships were messed up so I removed the tables from my form's dataevironment and replaced them. My grids then disconnected to their controlsource. At that point I figuered my form was gone. I recreated it, defined my properties and methods, placed my objects (thank God for OOP) on the new form, and re-set my grids. All seems to work again. Thanks for giving me some new angles to look at to address the problem(s).