Did you install SP1? This problem is listed as fixed in SP1.
http://msdn.microsoft.com/vfoxpro/downloads/updates.asp

>Using VFP7. There is a weird situation going on with one of our VFP apps running on our network.
>
>It only occurs after a series of steps, but the end results is that the main VFP window acts like ALWAYSONTOP got turned on.
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>After this happens, our users cannot ALT+TAB or click on any other Windows application that is open. The only way a user can access another Windows app is to minimize our VFP app and then they can ALT+TAB or click on another app. But as soon as our VFP app is maximized/restored, ALT+TAB won't work again.
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>If our VFP app is shutdown and restarted, then everything works normally until the series of events are repeated again in our app.
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>Has anyone else had any experience with this sort of situation in VFP?
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>I could name the series of events that occur to reproduce this, but they are pretty normal events.
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>Thanks,
>
>Jerryt