My facebook chat heads disappeared about 4 days ago as well as the corresponding green notification light. Anyone have the same problem? I think something happened when I was dragging a chat head to that circle with the "X" in it. I have done that before of course, but it seems I sent the chat head into never never land somehow. The option for chat heads in settings is still there, but there is no box to put an X in or delete. It's just blank. I tried logging out and re-installing facebook, but no joy. Any ideas? Thx!