I have a 2002 Outback and have noticed the windshield has become loose behind the observer seat. I guess from people using the winshield to pull them selfs up. How do i tighten the windshield back up to stop the back and forth movement. It does not move alot just enough to bug me. I image it has something to do with window post, but not sure how the post tightens. I have turn the post but with no luck.

Tks