Thanks for the help, Terry. David guessed right. I set _SCREEN.LockScreen = .T. and left it on. :)

Alex

>Alexandro,
>This kind of issue is kind of a "hobby":). VFP 8 is so finicky!
>
>You may already be doing this - assure the parent object/form has focus (don't let it sit inside an OCX.) Run your cleanup from queryunload - then release followed by a CLEAR EVENTS.
>
>I have spent bunches of hours trying to get a clean close. Eventually it happens - but it is painful!
>
>If that doesn't help post back with some info on the apps state when you are closing it. It sounds like a dangling reference is not releasing - and it looks like you're going to do a bit of object fishing!:)
>
>>Strange visual phenomenons are occurring that weren't occurring before.
>>
>>When I close an application that was running in development environment, a picture of the form remains in the screen; in fact two copies, one smaller than the other as the toolbar is closed first but the image is somehow not refreshed. At taht point, as I move the data session window, it leaves a trail. Additionally, sometimes only, even after I click on the maximize box in upper right, meaning to make form resizeable, it does not become resizeable.
>>
>>I think the problem is screen refreshment at the windows level. Any ideas? I exited the application several times and rebooted.
>>
>>TIA,
>>
>>Alex