Use ddfix. Make sure that resolutions in the cam.cfg and ddfix.ini match.
It works fine... except the textures are all screwed up. Very multicolored etc. It looks like crap basically.
The Thief 1 demo (Assassins) works fine on the other hand.
I've got multi core off (it wouldn't even work with it on)
Also, anyway to run it with hardware "enabled" so I can have higher res or not?
Use ddfix. Make sure that resolutions in the cam.cfg and ddfix.ini match.