In reading the forum, I noticed the thread from BCB saying something about bow graphs shutting off when the big motor is cranked, and the relation to battery size.I have one of the new Margays. Humminbird 788ci HD DI on the console, and just a 728 at the bow.I cant seem to pinpoint any association, but my bow graph shuts itself off occasionally. It *typically* seems to happen two to three times at the first place I stop to fish. After that, it wont do it the rest of the day.Batteries have a fresh charge each outing. No problems cranking the motor. No similar problems with the console graph. And I havent noticed any correlation to the front graph shutting itself off if the console graph is on, or off.Thoughts??