i have a new mbp as well. i even tried installing war3 in xp under boot camp, because os x gave me so many problems, but that was even worse. it seems like there is some issue with the sound that makes the game really choppy and pretty unplayable. this is in boot camp 2.1 and xp sp3 and it still played like crap so i actually uninstalled and went back to playing in os x it was THAT BAD.
strange, I have all the standard problems in OS X, but I have no problems at all in bootcamp.