I enabled Jeff's account (his license expired) but I'd bet he forgot his login info. I can't see his password. How about this? He can call me any time (always) and I can help him with data on this. But basically the rotator isn't completing it's requested operations. In any case I would check (in this order, and he will ask you to look at as many as you can):

  1. The camera package is really in there tight and unable to slip.
  2. The power supply running the rotator has enough voltage under full load (max current).
  3. There is no possibility of cables adding to the load of the rotator (pulling etc).
  4. Finally, is the camera package too heavy for the rotator's ability? Could it be overloaded?

Don't forget about the other issue, the sidereal rate on the mount.