With the ATI Radeon 9700 it consistently locks up hard after playing UT2003 for just a few minutes. This particular card is one of the pre-release 9700's (but supposed to be final silicon) that ATI sent us along with the latest drivers from their web site (same ones we shipped with the game). This machine is now going back to the office for extensive testing. On the way to the office I'm going to stop by CompUSA and buy an off-the-shelf retail 9700 and I fully expect, based on what I'm reading here, that the same problems will occur. Right now I feel really stupid for not installing the 9700 in this machine during testing of the game. I had actually planned to try that but I never did it because there were enough other Radeon 9700 machines running the game and, at the time, they were going through new drivers pretty often. That is normal for prerelease cards but I didn't want to deal with it in a machine I planned to take home again. Big mistake and I apologize for that.