I've got the new unibody macbook pro running at -2.53ghz -512mb vram 9600GT -4GB Ram And I have started playing COD4 on Mac OS X Leopard 10.5.5 and performance was just under 30fps, very annoying, better to play on the xbox360. When I watched this video of an older macbook pro: http://www.youtube.com/watch?v=Mp9i986jO4I I was sooo pissed off coz he got an average of 48fps. He is, however, running bootcamp. So my question is, does COD4 run better on windows? Ive got a better machine with faster FSB, faster memory and more ram on my videocard. why does his MBP perform better? Thank you to all who helps me on this issue!