Hello! On my other PC I was messing about with the boot sequence in the BIOS setup (so the CD drive preceeded the hard disk) and since I moved the boot sequence back to the default settings the CD drive's not been working. It says the drivers are either missing or corrupt; and uninstalling/reinstalling the drive has no effect, and a driver update search just says the ones already installed are up-to-date. Could it be because the CD drive isn't high enough in the boot sequence? I can't remember exactly what the default sequence was but I've just checked it on this fully functional machine and the CD drive is first in the sequence with the hard disk second. Annoyingly the PC is at another house which I won't be at until Thursday and there's no net access there. Thanks!