Hi Steve,
I've gotten that error before when I change the rowsource of a grid, or combobox programatically, as opposed to having them set up beforehand. The error doesn't occur at the point of changing it, but rather when I try to exit, as it did with you. I know it is a bad practice to be changing the rowsource like that, so I don't do it anymore, but perhaps you are doing that somewhere is why you're getting this error.

Paul A. Busbey
I.S. Department
Sparagowski & Associates