I was riding a course with turn-by-turn navigation. I turned with the wrong group and the 1030 indicated that I was off course and should perform a u-turn. I stayed with the group and when I attempted to stop the turn-by-turn navigation by hitting the "X" on the map page, the "X" turned grey and the 1030 froze. I had to hold the on-off button for over 10 seconds for it to turn off. I was able to restart the 1030 and finally turn off the navigation.
