I finally looked into this over the weekend. Just in case anyone else runs into the same problem, it was super easy to fix. Stop reading and just get out there and fix it! :-)
Okay, since you are still here, it was simply the mounting bolt in the middle of the regulator that had fallen out. It was in the bottom of the door. Put that back in lubed up the regulator for good measure and put the door panel back on. I said it was easy, now go fix it! :-)