Sorry. The replies to last evening query didn't get me too far.
To clear up a few questions. This CD drive is fitted in place of the old CD Rom. It is the master on the same ribbon as the Iomega Zip drive is the slave.
The Motherboard is an Asus A7V133.
This new CD drive refuses to play any CD and I get the message Setup has caused an error in Setup.exe
Setup will now close
Try restarting computer.
Restarting does no good.
Clearly something bad is wrong, but what.