Has anyone had this problem? All the other windows are fine, but the driver's window can be pushed down by hand from the outside. I discovered this recently after locking my keys in the car. Just the friction of hand against glass is enough to get it moving, and it even opens a bit when I go over a big bump! Any ideas? Worn winder mechanism? The glass itself is quite a loose fit in the rubbery grooves it slides up and down in btw.
Can't see anything wrong in the mechanism Otherwise it winds fine, if a little stiffer to wind up than the others.