[roddy]

There is a small damper there. It just snaps in place. The tech may have missed it when he put things back together. I've had mine apart to change the cabin filter a few times now, and almost missed it myself the first time.
Open your glovebox, and look down the right side on the outside of the box, and you'll see a pin with a slot in it sticking out of the side of the box. There is a little "damper" that snaps over that pin. I'd bet that your damper is hanging free from it's upper mounting point. Grab it and snap the hole in the bottom over the pin on the side of the glovebox. Hope that helps.