AT the beginning of a ride, after I have set my training page for no apparent reason the unit highlites a randomn data field in blue, and then attempts to edit it. I can get back to the training page by hitting the back button. Sometimes it randomnly changes the data field from one selection (distance) to another (time to go...). I am not touching the unit and the physical jarring of the unit does not cause any changes.
This goes a away after about an hour of riding and does not retrun.
Other than that the unit records accurately.
Any ideas!