Apple has released an update to their OS today and you can download it through their website or using the Apple logo on the top left hand corner and clicking Software Update... I was looking on their site and noticed that there is a different update separate for Mac mini users and that if you do use a Mac mini then that should be the update for you! This update is for the Mac mini's from the Mid 2010 range and that means the new ones released today. We doubt many people have one right now but if you do then this update is for you!

Here is the link for the 10.6.4 update for all Mac users (except the ones with the new Mac mini released today): Apple 10.6.4 Update

These are some of the fixes in 10.6.4