Hi Ken, Thanks for your reply. I thought so, but, now I'm confused. I reinstalled the original software that they were using (Adaptec Easy CD Creator 4) and it won't burn any disks - it tells me "There are no supported CD-Recorders available. Ensure that your CD-recorder is powered on and that all cables are properly connected." Well, I haven't changed any cables on that, all I did was upgrade the firmware from ZWS1 to ZWS4 - do you think that's my problem? Thanks very much for your help!
Update: I just installed Burn & Go, to see what would happen. I got an error message "Hotburn did not detect a CD-R/RW in your system......ensure that your drive is properly connected and configured" - so, do you think I need to do some cable changes? even though I never changed the cables to begin with? How strange.