Another Vista OS WOn't Boot

I've got a Dell computer with a RAID1 disk configuration and a single logical drive "C". I've tried the lengthy BCDEDIT solutions found on this and other sites, but I keep getting the imfamous error message about system device not being found. This always occurs upon the import command in any solution I've run.

When I boot without the repair CD, I get this message: File: \BOOT\BCD Status: 0xc000000F Info: An error occurred while attempting to read the boot configuration data.

I can browse the C drive so I don't think there's a hardware problem. I've also run Dell's hardware diagnosis program and everything looked fine. I had just clicked an FTP button when the error occurred so I'm pretty sure it's virus related.

I've used DISKPART to set disk 0, partition 1 as active, then restarted.

Anyone have other ideas? I'm at a total loss.