After my warrenty ran out I started having problems with my screen. Travelling with it either on bike or in the car, the screen would go crazy shaking and clicking in the headset. I could either turn it off and back on or sometimes making circles on the screen with my finger would stop it. I called Garmin and they said if I would send the unit to them with $225 they would check it out. I thought it may be the heat but in the car I put a A/C vent on it and it still would do it at times. Anyone else have this problem?