I presume you've downloaded the latest video driver for your card, and tried different resolutions and color depths?

I seem to recall M$KB having something on this. It suggested some method of forcing NT to rebuild a file....

Let me know if these other methods don't work, and I'll try to find it again....

>>>I guess I'll put this problem on hold for the moment, my users won't be going to NT for a few months...maybe some better brainstorm will come along...
>>
>>Try rightmouse clicking on the desktop and refreshing.
>
>I'm new to NT, but my version doesn't seem to have any of the web-style properties available like Win9x to do a refresh.