Weird mirror behaviour

[Delboy]

My passenger side mirror has started doing things with a mind of its own, everytine I get in the car the mirror glass is either fully out board or looking at the door.

I thought the missus had been messing about with it but it's doing it with her key too.

The motors and fixing seem to be ok as I can adjust it and it's not falling around just different every time we get in the car