Hi, I'm using VFP 5.0a. I have a form with a page frame containing 8 pages, 7 of them with a grid. When I switch between the pages, eventually I get an Illegal Operation error. The problem is that there is nothing consistent about the pages which result in the error. IOW, it doesn't always happen on the same page. Sometimes the page will display fine, other times it gives me an error. Sometimes it happens on a page that I've selected before in the session, sometimes it happens the first time I try a particular page. It doesn't make any difference which order I select the pages in. I thought it might be that I was switching pages too quickly but slowing down doesn't help. Other times I can switch as fast as I can move the mouse and nothing happens. Based on all this, I doubt it's my code. Otherwise I would get the error the first time I hit the page. I thought that maybe the form was too large for a PC with only 16MB or RAM but, if that were the case, wouldn't it always blow up after the same number of pages? I know there's not going to be any quick answers on fixing this but if you have any advice on where to start looking, that would be very helpful. Gary J. Sibio