Hi Ben...tried that already, and didn't help. I deleted geometry rsr files, got rid of the environment things suggested above, I'm at a loss. I guess the question is, hardware-wise, what affects the display and rendering engine? Is it graphics card dependent at all? Tomorrow I'll probably pick up another graphics card and see if that's the culprit. My memory checks out ok...I'm mystified! Other applications seem to be doing ok. I uninstalled the software I was testing, which was on another drive, but that hasn't done the trick so far.

Sgiathalaich