>> The version of VFP is 3.0a .
>
> Is this with Win 95 or are you running Win 3.1?? Next, try setting your video driver to a standard window driver as apposed to a 3rd party video driver that may have come with your machine.. If this solves it, then maybe you need to check and see if there are newer video drivers for your machine..

I don't know if it will resolve your problem, but please note that there's a version 3.0b of VFP