I have just done the latest updates on my tomtom rider v5 and I have noted that the main time icon keeps returning back to 12:00 am. I have gone into settings on the device and reset the time and it updates to the correct time ok, then after about 2 minutes it then goes back to 12:00 am again. I have checked to see if my device update for the rollover is ok and its says it is up to date. I have read that there could be a problem with the time zone but I can not change that. Has anybody had the same problem and how did you solve it.