Hey, my external hardrive has decided to stop working! It just wont appear on the desktop, disk utility doesnt see it nor does system profiler register anyhting being there. Its a Taurus Raid II external hardrive with two Seagate Barracuda 7200 RPM 500gig harddrives in it. I've tried all of the ports it has on the back as well as plugging it into a different computer made sure that the power souce is legit. Where am i going wrong?