Took the P3A out to photograph a ranch for a real estate agent. Inserted a fully charged battery in the P3A - as it was warming up the display showed in red in the left end of the menu bar - "No Transmission" - there was no picture on the iPad - shut down the P3A - restarted same result - shut it down again installed a second fully charged battery - all started up normal no transmission message gone - when I returned to the office I inserted the first battery and this time the P3A started up normal (a no transmission warning appeared for less than a second and cleared) - do any of you folks have any thought on what might have happened???