>In the Visual Extend framework, there is a certain form, used with a "File | Open" command, to show a list of available forms.
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>This form contains a PageFrame and a ListBox. The ListBox is in front of the PageFrame, but it is an independent object (not on any of the pages) - the idea being that its contents are re-loaded depending on the Page selected by the user. (This allows the programmer to divide the forms into categories.)
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>The queer part is that on some computers, the ListBox sometimes appears outside the form - as if it where an independent object. With the Did anyone ever see a similar behavior? Would this depend on the version of VFP; on the OS version; or on something else?
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>When I tried this today, giving a software demonstration (arrrg...), the first time there was no problem; but after closing and re-opening the "File | Open" form, the problem appeared. After closing and re-opening the EXE, the same pattern. No problem on first open, only later.

It sounds like the form was not actually released. Can you verify if it was indeed released?