Ubuntu has own very gorgeous designed interface. It is so cool to run the Adobe AIR like Twhir under Ubuntu. With the Adobe Air Beta released, I think most of you are bursting to upgrade it. If you didn’t install and upgrade it as root from the beginning, you must meet the permission error. Then if so what you do could delete the orginal copy and install new copy? Following article has detail introduced how to do it. If you have the same question, why not have a try at once?