I have a 15" AlBook, Rev A (if there is even a Rev B). When my Airport is in use, I can hear it through my headphones! Really annoying buzzing/chirping noise whenever I am transferring data. Although it is somewhat geeky-cool to be able to hear the patterns in your file downloads, it is also taking away somewhat from my musical experiences. Has anyone else noticed this? is there a fix short of mailing in my PB? thanks!