I have a late-2008 unibody MBP. And, in OSX, with the 9600 enabled, I can easily get three hours or so with moderate settings, even when playing some games, or downloading stuff. With the 9400? Even more! But, in Vista, I can barely get an hour of life from the same battery. With "balanced" settings, and just browsing, I get about 70 minutes or so. With "high performance" and playing some TF2, I get only about 45 minutes. What's the deal?! Any suggestions? Thanks!