Ok i have a cdrom, that is not showing in the bios or in windows. The cdrom is ok, because i have tested it in another PC. But i have DVD rewriter that i have tested on the same IDE lead and this does show in windows but not in the bios. I also see this DVD rewriter on the boot up screen. I have set to Auto detect in the bios but still it doesnt show up. I have XP pro for my windows i updated from windows ME. I would appreciate any help.