Sorry for the confusion. I misunderstood your post the first time round and got my left and right mixed up. :embarassed:
I thought you were trying to get it to turn inwards further towards the car, ie if you were sitting far forward in the drivers seat you would need it further in towards the car. Right side of mirror in more, left side of mirror out more.
After re-reading it you wanted it to be further outwards.
The glass is just clipped in so as you say it may have just come off the clip.
Sorry for giving you false info :embarassed: