>Hi,
> Aaaah Dell,s, I as a matter of course don't use DELL's pre-installs, they are notoriously flakey, I just drop the partition and do a full reinstall, it saves a lot of hair loss.
> Also check for BIOS updates & download and install the lastest Video & NIC drivers. Also check for mouse driver updates, I have, as well as others, spent months identifying buggy mouse drivers. Have had problems with MS Intellimouse & Logitech.
>
> Just reinstall & check one problematic workstation & see what happens, keep in touch.
>
>Regards

OK Stuart,
Will do.

I reduced the video resolution to 8x6 and the refresh to 60Hz. Part of the problem went away. Looks that might part of the solution/problem.
Talked to Sys Admin about new video cards but I didn't get good answer.

Sys Admin also tried VFP7 with WXP. Everything seemed to work there, and he's got the fastest machine in house. He's checking to see if the programmers can get upgraded(?) to WXP as an easy(!) solution.

Thanks again for your efforts.
Pete