When Apple made Snow Leopard 10.6.7 update available for download, they failed to mention that although there were a number of fixes, there were also problems as well. One such issue was with the new MacBook Air, such as crashing.
It does seem silly that this update was released mostly to resolve an issue with the MacBook Pro , but has now caused an issue for the MacBook Air. The main problem is to do with running the latest version of iTunes, which 9 to 5 Mac reports that users have to force the jukebox application to shutdown. It seems that users are able to start iTunes, but then after 20 seconds the application will freeze, which means that the Air will not respond to any commands.
The easiest solution for now is to not download and update to Snow Leopard 10.6.7 just yet, not until Apple is able to resolve the issue – although this is a bit late for those who have already done so.