I purchased my macbook pro last summer before the switch to the new unibody models. Everything was working great but recently I have been having some problems in bootcamp on my WinXP partition. In particular video appears to be stuttering and playing out of sync with my audio. Also, my power management setup seems to be all out of wack. I can't get the machine to sleep on its own. I have to manually turn it off or put in in standby mode. I know there was an issue with the Nvidia 8600m cards but my symptoms appear to be different so any suggestions would be greatly appreciated.