>>>Hi, Fred...
>>>
>>>When I first read your message, I wondered what was in those doughnuts you've been eating <g>, but figured I'd give it a shot. (I've wondered about video drivers, but never suspected a printer driver.)
>>>
>>>And you were right!
>>>
>>>I don't have an HP driver, but I do have a driver for a color laser printer called Tectronix (or something like that). The driver is from the manufacturer. When I remove the driver, everything works OK.
>>>
>>>Now the hard part....explaining it!
>>>
>>>Thanks for the info!
>>>
>>Hi Kevin,
>>
>>PMFJI, but what's happening is that the printer driver is setting the math co-processor to a state where the calling application (in this case VFP) is expected to handle division by zero. VFP expects the co-processor to take care of it. See Q183522 in the MS Knowledge base for further details.
>>
>
>That said George, would it be difficult for MS to fix the behavior?

Infinitely more difficult than it would be for HP to save and restore the state of the FPU when they receive control, or at least to leave it in a consistant and usable state.