Installed fine for me... only problem is that there isn't any recording/mixing software for it in X yet... Cubase or Protools would be great (I wish they'd get it together already) BUT wouldn't it be great if Apple dev could take the lead on this and create a sound recording/mixing solution natively in Cocoa that blows those apps away... something on par with Final Cut Pro - for music... THAT would cement Apple's dominance in the pro recording world...