First off, the hard drive is a WD Caviar Black Identical to the one apple provided (320gb 8mb cache 7200rpm). When I go to format it, it appears to be named "media" with the capacity at 0. When I open disk uitility, all the options to repair, verify, delete, format, anything isn't possible to click on. So here's what I have done. I created the GPartEd bootable disc, and formatted the drive to fat 32 and named it boom. I rebooted and went into Windows 7 and it appeared just fine. Booted into OS X and it reverted back to how it was prior to GPartEd. I repeated the formatting in gparted and formatted it to fat 32 again and booted to OS X and it was fine. I formatted to the OS X Journaled and it was fine. I shut down the computer to install an additional Caviar black to set it up in a raid, and when it came to the desktop it said the drive was unreadable. What should I do now Cliff Notes: Hard drive keeps resetting itself to an unformatted partition after the second reboot.