JGregory,
The 1.6.4 update fixed all my problems. Congratulations and many thanks to all of you for great product support.
The only nit I now have to pick is the external sound seems subdued, and I have both the a/c external sound and x-plane sound maxed. Internally it sounds great. Years ago I flew turboprops (twin otters, king airs, volpars) and this is the way I remember them. Super job.
MJR,
After further messing around I discovered the throttle display, and I bet I was doing exactly as you said. I had a feeling then that I was missing something. All is well now. Thanks for your help.