I just bought a 320GB Samsung SATA HDD from Newegg. everything works fine, but locks up during REGULAR FORMAT ( I can only use Quick Format), and it also locks up during Error checking Phase 5... I don't know why... when it gets to 90% on regular formating the formating will lock up, and you'll hear "click" sound from hard drive... I just bought this two days ago, should I RMA and get a replacement?? So far I can read/write to the hdd perfectly fine...