Hi Guys, I jjust got a new 15'' with the 7200rpm drive adn heres the thing. When I close the lid and its goes into tlseep mode, if i move teh poewrbook (specifically rotate it) my powerbook makes a very disticive sound like light sabers on star wars. I believe its comming from the hard drive. It dies this until the hard drive spins down to a complete stop. Is this normal? Should I be worrying?