Dell Dimension 2400 - I think the secondary controller is bad to I hooked up ther CD-ROM as a slave to the hard drive on the primary controller. I need to boot off the CD-ROM. In the BIOS it is listed in the "Boot Sequence" but says (not installed). If I boot to windows the CD-ROM drive behaves normally. How do I get the BIOS to recognize the CD-ROM so it will be botable?