Question here... I've got an iBook. Most recent revision. Want more, look in my sig. The question I have is this: when I have my iPod earbuds plugged into the jack, I sometimes hear this whine in the left earbud and it'll lower in pitch until it's gone. It's almost as if the iPod earbud had some air in it and it's escaping through a tiny hole. Is this something to do with the way the headphone jack is powered? Or is it my jack going out over time or is it my earbuds wearing out? Or none of the above?