Kudos to akula65 and anyone else who had sugsted it. The multi-CD drive was the problem. Thanks for the help.

Thanks for the advice, but problems still arise. Where would the -useexedir file be located? I checked the sites for the 1.4 patches. I used both the Aus and US version. Neither seemed to work. The CD case was the cardboard version, if that helps anyone to know. The sugestion about the catche chatch ...

I've been out of the Descent loop for a while, and am just re-installing the game. The Installation seems to go alright, but when I launch the game through the start-up menu, or through windows it says the CD is invalad. I searched around for a bit online, and found the latest patch ( 1.4) and ...