Playing music over AirPlay on iTunes 11, running on my brand new Retina MacBook Pro 15" (running 10.8.2) is not a pleasant experience. From time to time, the music starts glitching, and it sounds like you slowly disconnect minijack out from your music player or something. After glitching like this for a couple of seconds, the music disappears completaly for a minute or two. The only thing that helps is to turn off AirPlay and then turn it on again. Which is, to say the least, extremely annoying. For the record, the AirPort Express is the newest Apple TV-alike version, and is located about 15 cm from the computer. The AirPort Express is connected to the Time Capsule, which is about 2 m from the MacBook. Anyone with the same problem? Is there a fix? Playing music suddenly became a nightmare..