A strange thing happens with my ArduPilot board (new 328 version) with shield and LD20031 GPS (uses NMEA parsing). I would describe it as follows: - Once in a while, everything runs fine: GPS fix locks blue, serial yellow led blinks. - Sometimes, I had no lock and no blinking yellow led - When I grabbed the board touching random pins, everything went ok again (blue lock, yellow blinking). - When…