i found this on pb nation and thats all i can find from looking around.
The Mojo not holding settings seems to have crept up as a problem for several people. Re-flashing would likely help, but you would need to track down the flash utility through the manufacturer, if you can (I believe we had an Angel user in Australia who managed to track it down). Try contacting Rabies on here - that's the guy who operates Rabid Paintball, the designer of the Mojo board.