my 2.16ghz blackbook's high-pitched "whine" has seemed to get progressively louder over time. it's even worse when the charger is plugged in. i took it to the apple store today & they are going to replace the charger input & the logic board (i have no idea if that will help at all). i'm just wondering if newer macbooks still have this same whine? my friendd just got a new macbook & it doesn't seem to have the whining at all.