Well, here I am again, drive number quatro just failed on me. It doesn't even get seen by the Bios on bootup. I know these drives have problems, but isn't 4 of them a little much for me to have lost? I have added cooling to the second 2 I received after the first 2 died. I even upgraded my PSU from a 300 watt Antec to a 350 watter out of paranoia. They all had some form of the clicking sound. Any other ideas about how I could prevent this from happening or am I just really really unlucky?