I have the solution. I too had troubles with UT and a GF3 and my 867. The answer is that UT doesn't like 32 OpenGL. If you change it to 16 bit, by editing the unrealtournament.ini file, it should run fine. But don't get your hopes up. UT has ver poor OpenGL support and the quality and frame rate are worse than with RAVE. Oh well, I hope that advice works and you can enjoy the game.