I followed a recorded course over two and a half hour. After I left the course for a detour - instead of rerouting - the 1050 rebooted. After this I pushed start and continued my ride. When finishing the ride the activity was not synched to my garmin connect. A check in the afternoon showed zero activity. I then connected to my PC an saw a fit file from the ride. I tried to import to Garmin connect, got another failure message "activity already stored" (or similar). Within the proper recorded activity I can now see the straight line during the reboot. Not good! would really like to have a stable unit.