The BIOS is already set to boot from the CDROM first, then the HD. When I hit "continue" it just comes back to the same error screen after a few seconds.

I've completely removed the old drives from the computer and have installed a fresh new pair of 1TB drives. There are no boot loaders or old O/S installations left to interfere with anything.

I primarily use Ubuntu Linux, but would like to dual-boot Win7 also so I may use a few audio/video applications that only run on Windows. If I can get Win7 in and running properly, then Ubuntu will add Win7 to its boot loader and work just fine. Again, these are brand new blank drives.