>I decided to see if could duplicate the problem at home (where I have a copy of my work through last weekend) and found I didn't get the error. The difference is that at work in the last few days I've added a grid to the third page of my page frame. I'm now wondering if a property of one of the grid controls could inadvertently cause something like this. Does that sound feasible? I hadn't considered it before because the problem was manifesting itself in the Load event, and I thought that was the first thing to fire (before any controls on any pages, etc. were instantiated).