For many months now - through 10.5 and now the 10.1 beta, my ATC window has been missing. No matter how I try to call it up, nothing appears. My suspicion is that it was either dragged off screen, or is so close to the edge of a screen, that I can't see it any longer. I've deleted preferences and it remains MIA. Any advice on how to either reset its location or gather it to a space where I can see it?