I e-stopped a run after realizing I had the wrong bit,

I e-stopped a run after realizing I had the wrong bit, and now (having put the correct bit in), want to start over, but nothing I try seems to work. I cannot zero either the work area or machine, and it seems like it is wanting to resume the interrupted gCode. I can’t find a button to abort all of that, and loading a new board (through the eagle widget) doesn’t solve the problem. Here is a screen shot: What am I doing wrong?