I work for an educational reseller, and a student came to get a MBP a few weeks ago. The government pays for it through a studies grant. Anyway, in passing, when the guy ordered it he told me he had ADD. He comes back FURIOUS that his MBP has the whine, and its driving him nuts! He flipped on us when we told him he couldn't return it, then flipped on Apple about their policy. Finally we got it all sorted out, and the guy is never to call Apple for anything ever again. Edit: I guess the punchline is that a MacBook drove an already 'crazy' person even more crazy! Note: I am a psychology major, and am in no way meaning to poke fun at the person or the disorder.