In the Valid method for column-8 of the grid (the last column in the grid), I have it calling a method I created to add a new detail line. When I move to that detail line, I'm getting:
Recordisuseby another user
I'M THE ONLY USER!!! :) I'm doing this on my notebook which is a stand-alone machine and not connected to any network.
Try setting focus off the grid before doing the REPLACE.