I may have fixed the lock ups with sound looping problem.
The problem was with MMSFAST.M3D so I did a search using Alta Vista search engine and found this page..
http://therabbithole.redback.inficad...win/lib/miles/
From there download the "MSSFAST.M3D" file and copy it into your MOHAA Sound drivers folder and overwrite the old one. This worked for me!!