I am so so sorry to waste your time.I forgot I posted this thread and found the answer elsewhere.
My problem was that I was mounting to the game folder 'c c:\dynamix\aodcd' whereas aodcd only works if I just 'mount c c:\'
It the first game I have had to do that, as I usually shy away from mount c c:\ as both DOSBox and my front end D.O.G. complain if I use the root directory!
The reason I did the full folder\subfolder mount was because that what I have done for dozens of previous DOS games in DOSBox!
Anyway, you learn all the time, thanks for offering to help - you're a star!