This may be a total noob question, but I was under the impression that you can use your regular combat arts, while riding. Every time I try to slot an art or combo, I get an chest armor picture in all four slots. Is this some known bug or are we only allowed to use the riding arts? I'm having this same issue with two different characters, one who has lots of points in riding, one who doesn't have any. I'm playing the 360 version. Folks seem to be talking about using their combat arts while using their unique mounts etc, so am I just missing something really obvious? Holy Hannah! sir?