[PhilOfPerth]

Yes, it is a beautiful place, Dustyjay. (see my Profile page).
They were both set to master at first, but I changed to one of each (does it matter which?) and that didn't make any difference so I tried both on Cable Select. That didn,t work either.
I'm caught between a rock and a hard place now: I can't reload Windows as I have no drives for the disk. I tried to locate drivers for them, but they won't go in because Windows can't find a suitable device for them.
It's a Dell computer and I've always said this was the problem and the reason I have so many compatibility problems, but I think this one was created by me. Might have to save up for a new one.
Thanks to all of you for your help.

[dustyjay]

Do they show up in bios? Can you remove the drive you added and just try it with the single drive? What Model Dell?

[PhilOfPerth]

No they are not listed on the Setup page (I presume this is the "BIOS"?) I will remove the second one and see if anything changes. It's a Dell Inspiron 1100 running XP with SP3. The drives are a Lite-on SOHD-167T and an LG Super-Multi GSA-4167B

[PhilOfPerth]

I removed the new drive, leaving only the previously working LG drive, set to Cable Select, but it still was not found (I searched for it again). I have put the other one back now (the Lite-On). This is set to Master.