Oh, well. You could go around the forums and see if a topic interests you then drop your comment in there.
But you don't have to do that, I've viewed the photos from the fragments of the links you posted.
Looks normal to me; I've also got the same black margin in my L1020 using 16:9 ratio.
This can be explained by the fact that the dimensions of the screen of the phone isn't 16:9. In landscape orientation, the screen of the phone is slightly taller (or wider in portrait orientation), hence the 16:9 ratio of the image is shorter in height in landscape orientation, leaving a black space along the longer sides of the screen.
However, once you start viewing the photo itself, you should not see the black margins anymore (e.g. viewing the photo in a PC or a photo app and then zooming in on the edges).