The other possibility could be left out thisform.lockscreen = .t.

>Dan, check the Form enabled property. Perhaps it got changed by accident to .F. It would prevent all controls from being selectable and even stop the close, min, max buttons from working.
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>>My form was working fine with serveral check boxes, radio buttons and text boxes, but after I added a few others, now nothing on the form is selectable. The only thing I can do is click the fox on the upper left and choose close. I SET STEP ON but debug doesn't show anything happening while the form is visable but unusable. This is all when I am running it from the application. When I try to run it from form designer, by clicking the ! nothing happens. It doesn't seem to switch to run mode. I still see the form on my screen as though it was in design mode. To cancel I click on the Pogram menu and choose cancel. Any idea's what I did?