Quake 3 Arena runs fine for me on 7 64bit
Quake 2 ditto
Quake (circa 96, WinQuake) runs too
What errors are you getting in Q3? I've not been beaten by any retro game bar Micro Machines V3. Can't get the graphics options (gl is it?) to work properly. Can run it in software mode but it looks pants compared to how I remember it running on my Hercules 16MB
HW: Cataclysm also runs fine for my on 7 64bit