Unplug the SATA dvd drive. Look over the motherboard carefully. You may have seperate SATA connections for optical drives (cd/dvd) and hard drives.
It sounds like you've plugged the dvd into a hard drive connection. Now, when you try to boot, tne XP bootloader in the MBR is looking for a bootable OS in the dvd.
As a test of my suspecion, try putting a livecd or livedvd in the drive, then power up.
Last edited by bigrigdriver; 04-19-2008 at 11:52 PM.