The back of my drivers seat won't stay upright. I don't know what happened. I got in the car one day and the back of the seat just leaned back. It feels almost like the side of the rear seat frame broke right where it connects to the lower part of the seat. I have to keep the rear seat folded down to keep the drivers seat upright. Does anybody know how to fix this? I haven't had a chance to pull the seat apart yet. Should I start with the plastic cover on the side of the seat? It's really annoying driving around with a broken seat. I could use any kind of advice you might have. Thanks.