Thread is mislabeled. I'm talking about a P4 3.1 Ghz. As I wonder what happened to my UT2k4 disks, I'm setting up my MBP (Vista) and a real P4 3.1Ghz machine do so some mutual fragging. I don't see a problem with either version of the game on my MBP running Vista. It's been a while, but I seem to remember that UT3 dragged a little as compared to the 2k4 version on the PIII although it exceeds UT3 minimum requirements. Any thoughts? And while I'm talking about UT, how do people feel about 2k4 vs 3 as far as how the game plays and the game variants? It's been several years now since I've played, but I want to say 2k4 was better. Hopefully the 2k4 disks will turn up. Otherwise it's going pretty cheap (around $5) online these days. Thanks!