I hooked up my imaging gear incl the AM5, AsiAir, 533MM, EAF and EFW to my 12V battery to start a session this evening. Everything fired up as usual - except my AM5. It was totally dead in the water. No lights, no contact with the AsiAir, no nothing. I tried several cables and contacts, but to no avail. I have always supplied 12V separately to the AM5 to assure adequate power - but alas, this time it was totally dead. Any ideas what this may be? The AM5 has worked flawlessly since I got it in January this year.