Hey Techspot. My 750GB Samsung F1 got here yesterday. I've used WDs and Seagate Barracudas for the last three years, and they've never caused a problem, but this Samsung is making a pulsing/throbbing humming noise that I can hear over the TV, and is making the desk noticibly vibrate when I place my hands on it. Is this normal? Is there a way to shut it up? The drive is mounted with plastic sliders. I've heard Samsung F1s are fairly quiet, which has me worried.