Okeydokey, so I bought a few new bits of kit including a Gigabyte S-Series motherboard. Both my hard drive and DVD drive are IDE devices and this motherboard only has one IDE connector. I had them plugged to the same ribbon, HD master, DVD slave. Fine. Tried to start up and the DVD wasn't detected. I tried going into the BIOS -> Standard features section and manually auto-detecting it. It was detected. Rebooted and when the machine started it listed: IDE 0 Slave: None. and wouldn't find my XP bootable disk. I've tried a number of combinations (DVD as master, HD slave, etc. Even disconnected HD and only had DVD drive as master) and for all of them it won't list my DVD as a drive on start up despite finding it when I manually try in the BIOS, thus meaning I cannot install an OS. Oh dears. Any ideas peoples?