I have 3 internal drives. Drive C has Windows 7 installed. Drive F I use as a backup. I'm trying to install Windows Server 2008 on Drive E. Drive E has been formatted, shows up in Windows Explorer, takes data, etc., but it does not show up as an available disk for the install process. The other 2 show up as install options but not Drive E. I've unplugged, rebooted, unplugged Drive F, booted from CD, and the drive will not appear but appears in Explorer. Any ideas??? Thanks.