It's not related to 64-bit version. Most display problem related to Vista Aero Glass. I bet you didn't try to run with Aero Glass on. I would recommend you to check blogs I pointed Bill to for more detailed info.

>Thanks Bill. I didn't realize you were running 64 bit. I'll put this on my list of things to check out when I can get access to a 64 bit machine. All of my testing has been 32 bit and as I said, I haven't seen any problems with it.
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>>Hi Dale,
>>
>>Definitely not my experience. This is vista 64bit and the windows are squirrelly with invisible headers and other issues. I can live with the cosmetic stuff but the data errors cannot be tolerated. I suspect some kind of security issues which I hope to get resolved from the sites in Sergey's post.
>>
>>Bill
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>>>>I recently had to get a new computer which came with Win Vista on it. I am trying to run an older application written in VFP 6 on it. The windows do not render correctly of course, but I can live with this. Now, however I am getting data errors when the app tries to access tables and update them.
>>>>
>>>>Are there specific things that can/must be done on a Vista computer to get a VFP 6 app to at least run from the data perspective? Upgrading to a later version of VFP is not an option.
>>>>
>>>>Thanks,
>>>>Bill
>>>
>>>Before responding, I went back and checked a large VFP6 app. running under VISTA (running on a Virtual Machine) on this computer. The DataBase is on a separate server. Everything looks good and runs with no problems that I know of. All the windows/screens look as good as they do under XP.
>>>
>>>I haven't had a chance to check every screen, but if there is a problem that I missed seeing I'm interested in finding out about it. So far, the client doesn't have any Vista machines, but from what I've seen in my testing I've told them the program should run okay when they do buy Vista machines.