A couple of more thoughts. Your gauge should be at firmware level 31.59.32 and the GPS module at 35.45. Have you loaded a track map into the module or have you set the start/finish manually and had the module learn the track. How many tracks are stored on the module? If there are more tracks stored in the module than you need, clear them out.
LAD Specialties customer / tony kart / rotax / kt100