Yeah I get this, plus something a bit more. When I first fire up Arm via Mushclient, it comes up normal but when I hit C, nothing happens. So I have to hit the d/c button, reconnect, comes up normal again, I hit c, invalid option c again, all is well. But I wasn't sure it was Arm, or Mushclient, or my wireless because I've also had weird spurts of lag that seem to be strictly me.