In January I retrofitted my old G-11 to Gemini 2. The Gemini 2 worked the first two times I had it out but tonight it failed during startup. It made it past recognizing the (Losmandy's) GPS unit but hung when I pushed "Next". On turning the power switch off and back on, it made it past initializing the hand controller, but after a few seconds of trying to connect to the gemini, the controller screen went black, and then the colored start-up screen appeared, just as if I had cycled power.

This behavior repeats indefinitely no matter what I do -- initialize, fail to connect to Gemini, back to start-up screen, repeat ...

I have turned the Gemini power switch off and on many times and also disconnected and reconnected the battery many times. I have tried three different batteries and two different power cords. I also disconnected and reconnected all cables many times, and tried it without the GPS unit connected. No luck.

I have not yet opened either case for any purpose: The unit has the same internal battery, the same SD cards (thus far un-reseated by me) and the same software as when Losmandy delivered it.

I thought I should ask advice before I proceeded further. Any suggestions?