Hey all, I just got a second hard drive. This drive will be purely for storage of files such as media and games. It's a Seagate, 640gb. I just can't seem to be able to figure out how to format it. It's plugged into the secondary sata port, and is recognized in the bios and device manager but I can't access it at all (ie. when I'm exploring my files the hard drive is not there)

I'm sure there is a simple solution to this but it seems to be beyond me, any ideas?