I played UT2004 in a pc with the same GPU as mine... (ATI 9600XT). I noticed that the audio and some video aspects are tottaly crap on the mac compared to PC. 1)Shadows. The shadows in the PC version are of higher quality. I mean, the shadows totally reflect the true shape of the character's body. In the mac version all I see is a blurry shadow-like circular thing on the ground. Have you been experiencing this, too? Is there anything I can do? (My system is in my signature... I currently use the G5). 2)Sound. One of the thinks I dislike about the game. I hate it when they are not played back properly. For instance, have you noticed the intro screen (the one with nVidia's logo and the skaarj that breaks it and shoots?). The sound is played only in ONE speaker. I mentioned this to give an example of what is happening inside the game. Sounds are heard from the wrong side sometimes (no, I have not enabled reverse audio, and there is nothing wrong with my speakers) or for example when a sound is meant to be heard from behind, is is played from the right or left speaker! Why is that, Is it because of OpenAL? I heard there are some problems concerning OpenAL for Mac OS X. Do you have any information about this matter?