Apple has released another software update for the late 2010 model MacBook Air. The update isn’t currently showing up in Software Update, but it can be downloaded directly using this link.
Apple’s comments on what the update does are rather sparse all they say is that:
This update resolves an issue with some MacBook Air (Late 2010) systems that prevents the system from sleeping.
The new MacBook Air has had a few problems with the sleep/wake features of Mac OS X as well as video problems being reported by early adopters (myself included). However, I have not seen or experienced the problems that people continue to complain about regarding external monitors and video.
Try this update out and let us know by leaving a comment how it works out for you.