Yes I did find the answer. Foxbase was written with a max screen size of 25 lines. I was trying to go to 43 lines. But windows xp and foxbase do not agree. Someware in the foxbase code is a max lines number of 25. If you tell xp foxbase has 43 lines it works fine but on 1/2 a screen. To use the old software you must tell windows that foxbase has 25 lines to get a full screen.