DSI/MDL Autoguiding Calibration and Halting, and Loss of Telescope Tracking

UPDATE: THIS ISSUE WAS RESOLVED BY USING RAY GRALAK'S AP V2 ASCOM DRIVER FOR THE ASTRO-PHYSICS MOUNT

FIRST ISSUE

When trying to perform a guider calibration sequence, the status display window shows "Moving Telescope", and nothing else.  If left, the telescope would keep on moving at the guider rate (0.25x).  Pressing the Stop button stops the calibration sequence, but the  telescope continues to move south in DEC at the guide rate (0.25x).  This can only be stopped by pressing a telescope Nudge control in MaxIm DL or in the ASCOM driver "Handbox" or in the telescope/planetarium control software.  Here is the set up:

Expose does not find a star.  Guide star X Y location is different from actually X Y location.

In the Guider Settings dialog, under Autoguider Output > Control Via, it seems I have to select Control Via ASCOM, do a calibration sequence (which will fail) and then go back and select Control Via "Telescope" to regain control to do a guider calibration sequence.  I know I've regained control, because the calibration sequence starts with "Exposing Light" in the guider status display window rather than "Moving Telescope" (a sure sign that the sequence has failed).

SECOND ISSUE

I set up a sequence to take three test images of the same FOV with camera 1.  The autoguider (camera 2) is connected and guiding (X and Y guiding errors display in camera 2 information window.  As soon as first image is downloaded, the autoguider stops and messages stop in camera 2 information window.  With autoguiding halted, telescope begins drift south in DEC at set guide rate (0.25x).  Second and third images are taken and downloaded but are unguided and have north-south star trails.