I installed Vista Ultimate on my Rev B. MBA last night and nearly everything has been fine. However, some of the Microsoft updates continually fail, primarily the Office 07 SP2 update, which I really would like. Any ideas? Is this common? Also, the keyboard backlighting worked fine initially, and could be controlled with the function keys, but since installing 79 updates overnight to bring the OS up to speed, my keyboard backlighting no longer works in Vista, but everything else controlled by the fn keys work as they should. When I press the keyboard backlighting fn keys, it just comes up dimmed out and with a circle with a line through it indicating that I can't use it. For this issue I may try repairing the bootcamp drivers, though I don't have my disk currently on me so any other options to try would be great. Thanks.