Is there any reason a Windows XP computer would flat out refuse to load CD-ROM drivers? I've tried one and two drives, switched cables, changed jumper settings, even updated the firmware on one of them. CD-ROM drives appear fine in BIOS and at the POST screen, but in Device Manager they have a yellow ! on then. If I put an Iomega Zip 250 drive in its place, it shows up fine and is useable. I also tried enabling Removable Storage service but no go. What gives?