Ok, this thread is really old, but maybe someone will search for a solution, so it might still help
By chance i found out, how to directly change resolution. I tried this only with the downloadversion of outcast (gog.com) and the hi-res pack. The point ist, to set resolution in the file, which belongs to the cpu, that is shown, when you start the loader (i.e. Pentium III 550 + 64 MB.ini).
[performance]
resolution=1280x960
cinemascope=true
Maybe it works with the cd-version too, but for that low price i would buy the game again at gog.com.
It's patched, and runs under WinXP without slowdown in the mud and riding the Twon-Ha, so what?
More details here in the forum:
Link
