I am quoting this from another forum for informational purposes only. MBA owners may find this bit of info interesting. You can take it or leave it, but if you own a MBA and are having similar problems, it may help if you need to take it in to a store to talk with a "Genius":

<i>"This update will be fantastic if actually works!

But I have a bitter taste in my mouth even though I'm grateful that Apple has finally offered a possible solution. Apple "PR spin" deserves to be called what it is: lying.

Apple calls this update an "issue with video playback and processor core idling". There is a much more accurate description that thousands of Macbook Air owners can attest to:

"The MacBook Air was shipped with a serious engineering design flaw. If you use an Air for any kind of video in a room that's much over 80 degrees the Air will overheat. When it overheats one of its processor cores shuts down and the other core goes crazy. This renders your brand new Air almost totally useless. You can't even control the cursor."

If you have a second monitor plugged in and view the video in a larger window the meltdown typically occurs all the way down to normal room temperatures of 72-74 F.

And what did Apple have to say about this? Right up until last week they have been absolutely and outrageously denying that there was a problem. When we took our Airs into an Apple Store, demonstrated the totally repeatable problem and hammered on the Geniuses we were told:

- There is no known issue. No one else has reported a problem.

- The problem you are demonstrating is not really a problem, it's normal.

- If you don't like the fact that one processor shuts down and you can't use your computer you should not watch videos and you should not connect an external monitor.

- If you want to watch videos you should buy a MacBook Pro. (I was so frustrated at that point I offered to return my pristine Air on the spot and pay the difference for a Pro--they refused.)

So now they have a "fix" for the "nonexistent problem"? Gee, thanks Apple. You guys are swell."</i>