Hi All,   I have my wing mirror adjustment knob set to the passenger mirror so it dips when I select reverse. However when doing this, on around 50% of occasions, the wing mirror does not move back to the original position when I am back in drive and moving again (I know it usually resets when I set off and am doing above a certain speed - 5mph?).    Does anybody have any experience of this and if so how I can overcome it?   Thank you.