Hello, I'm working with the simulator_stage stack and it has been working just fine running with the local X server. I am currently hoping to set up a dedicated simulation system that a number of users can log into and use to run Stage without worrying about whether it runs on personal computers or not, but I don't see anything on the wiki about running it headless. Is it possible to run Stage headless or is Gazebo the only simulator with headless support? Thanks Eric