I have a PowerMac G5 (Single 1.8) with 1.25 gb ram and an X800XT 256mb card running 10.4.8. Yet I just purchased this game and it runs very choppy, even with all the settings off. I tihnk my computer is more then capable of runing this game. The worst part are the full motion videos which run at about 7 frames a second, sropping frames consistantly. I am also on a 24 inch dell at 1920 by 1200 res., is that a problem? Thanks!