I've just installed the post-RC1 build on my MBP17 w 2gb RAM and everything works fine Aero, sound, wifi etc (except usual culprits) Its nowhere near as responsive as I'd hoped, and its more than usable for normal stuff, but... I've also installed Company of Heroes, an excellent new RTS game. I'm shocked to find that there is video corruption - flashing bars, mising textures etc etc and that when running the performance check it gives min/max FPS of between 1 and 10. Its essentially unplayable and runs far better on my 3yo Thinkpad. Given that the hardware in the MBP is basically the best/newest available, its disappointing to see such a poor result. Any ideas?