Try using the HP driver that comes with Windows, not the one supplied by HP. Sounds like the problem is more of a driver corruption or mismatch problem within Windows and not a VFP issue.

>Hello Sir,
>
>Again i am seeking help from you.
>When I print or preview a report designed for HP 840 or laser jet printer
>my application works fine. But after that when i try to run a form, system
>hangs. a blue screen comes up with some vxc,vmd errors.
>
>What could be the reason. i checked ms knowledge base....but found nothing.
>
>Please Help