>Thanks. I actually changed it so that the "full path" is used. That worked.

That would work for sure, but if you ever move your grid to be in a container, or in a page of a pageframe, it will break and you'll have to put a new full path there. I do such things quite regularly - a form begins as a simple one, and then it starts becoming a slim book of few pages - so I try to stay away from that sort of dependency.