hello there, i've read a lot about noises coming from macbooks and especially the macbook air, too. but there doesn't seem to be a solution for what i'm experiencing. it's a constant high pitched noise on the left side, pretty much right next to the power connector. interestingly enough i am able to get rid of it by using QuietMBP and setting its slider to its lowest value - 10ms. however that just isn't a solution since the fan instantly kicks in and the battery is being killed, too. i'm regularly working in _very_ quiet places so it's really annoying and i can't leave it like that. do you have that as well and just bear with it or should i contact apple about it?