Gene,
Attached is the log file for just the mount, the HC, a CCD simulator, and Astrometry. Looks like the error messages are the same. Well at least the PPBA isn't causing the problem!
I do have the necessary hardware to build a direct PC interface so I think that will be my next step and rid myself of the HC altogether. Is it possible to have the direct interface and the HC in parallel through another AUX port or am I asking for trouble?
Mike