Well I jsut checked it out. There were two clip things on the insides at the top of the vents. I got those pulled down with tiny screw drivers, but when I went to pull it out, it seemed as though there was something holding it from the center and/or at the bottom also!
Please, Benzmac, Steve (x 2!), or anyone help me with this!!
Here is a pic.. you can see the clippy thing up there. There's one on the other side too. But that's it?