The MacBook Air Software Update 1.0 addresses issues with video playback and processor core idling.About MacBook Air Software Update 1.0
Third-party software that modifies processor operating characteristics such as frequency and voltage is not supported and should be removed before installing this update.
The update does prevent core shutdown. However, it under-clocked my Air so much that I could not longer easily move the mouse across the doc at times and once this behavior set in it would not stop. I turned Cool Book back on and it works like a charm inspite of Apples silly warning.Not found.