It was responding very slowly, making it hard to even move the mouse around the screen.  Restarting did not fix the problem, which is also present on the corner machine.  If I use a mac instead of one of the control room machines, it works fine.  

Also, several control room machines are no longer running the terminal server client.  They just say there was an error launching the application, operator1, opsws0 and opsws1