The origional won't run on XP so I boot with FreeDOS and it works a treat.
Only the demo? Ouch, sucks for you. You're missing a lot of great stuff.
What version are you running? Is it SP3?Perhapps it could be that the Windows video driver isn't fully DOS compatable?
I'm not runnign Windows 2000 I'm running Windows XP that's obviously why you can run Quake and I can't. If you read back I did say I was using XP. :rolleyes:
The problem is probably nothing to do with video drivers and more to do with XP's inferior DOS emulation.