I don't think the problem is that they don't want the chat window to show up. If I understand them correctly I actually have the same question: when I'm streaming something that's full screen (in my case a game using the "Capture Game" mode), how do I participate in chat? I can see the UI and the chat window, but I can't type in the chat.
Edit: Oh I think their issue is actually different from mine now that I'm looking at it again. It sounds like they're not using the game mode so they can just use the normal procaster window to chat. Never mind!
Last edited by bluerobin427; 20th October 2012 at 18:45.