here is the hack to get the citizen card working with OSX: http://www.buergerkarte.at/
Problem ocurring on Java 1.7 and Mountain Lion. This is really a hack and uncomfortable for IT enduser. You feel like back in the stone ages hacking around to get things working. Poor that they do not get the citizen card working for OS X users: they don`t have to wonder themselve that no one uses the citizen card service!