Is that NT Workstation? If so, then upgrade and be sure you get the latest WinNT Service Pack - I think it's SP3, but NOT the Visual Studio SP3.
I'm having different but VFP-related problems at a client's NT3.5 server, and he's going to upgrade in July (new fiscal year after 7/1/99). I hope it helps.
Barbara
>Thanks for the suggestions. If you have any others - no matter how far out in left field - I'm all ears. :-)