It's an LG Flatron. Every so often I have to reinstall the LG drivers because Vista will load the generic drivers and screw up my resolution. No noticable bands on the Mac, even with the same colour background. Come to think of it, I had trouble when using the DVI connection from the Vista box. The display was a bit better, but the monitor kept going black every 2 or 3 minutes and restarting, which was intolerable. No such problem with the Mac. Maybe I'm just getting shitty ATI cards when I order them installed by Dell. I never had problems with ATI cards when I bought and installed them myself. Maybe Dell gets them as "seconds", who knows?
I think I'll try a new card on the Dell this weekend. I could use more video RAM and I was getting some Open GL warnings anyway.
W