I've rotated the picture of the left side to have correct side up. It is not easy to get the camera in the correct rotation. The right side of the vent shows the opening continuing at an angle going down. The left side shows there is something blocking the opening. However, it does not look like some random piece of debris. Either it is some kind of a clip that is put in there, or a piece of Styrofoam specifically designed to fit in there. In this picture it is not that clear, but in some other picture it looked a bit rough, most probably Styrofoam.
I think it is now time to call warranty, though my fingers are itching to remove the back panel!
If it is not a copyright violation, I would like to share the mini manual here. Do you know if it is OK to do that?
[image|3590995]
[image|3590994]