Ok some of the old tricks in Java and chat clients and most sites that use the technology for chat do a couple things when you connect. One thing is to re-map your kepboard, and one of the most common boot out of the room is to kill the app if a user hits the backspace key. Easy way to test this is to log into the room and say nothing but hit the backspace key, if you loose the room then you know the magic. Yahoo has used this for a long time in their chat rooms one of the few tools if it has a moderator can use.