>Hmmm . . . that's interesting. I don't remember seeing it in any other apps (I use Outlook all the time) and I was thinking it had to do with the non-standard way in which VFP handles windows. Are you saying you see this exact behavior where the button will depress/undepress as you move the mouse back and forth over it (without clicking)?
I second Fred on that: it seems to me more like an error in Windows, not in VFP. Sometimes you see weird behavior with the mouse, which might go away after a while, or if you restart the OS.
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