>>Try the up and down arrow keys...
>Just checked this in VFP 5.0 - that's right, and if you click by mouse on the arrow it works again. But what can we do about it?
>
>Nick

I reported the problem to MicroSoft via Internet. The fact that changing focus or clicking on the arrow corrects the problem probably presents opportunity for some messy work arounds to the problem. I think I'll just tell my users to live with the problem for now and see if MS corrects it.