Your suggestion kind of worked. I was using a computer that I had used successfully in the past, but not my regular computer. I went through the setup and there was no difference - I was still not prompted to to use the z-axis probe. I then opened a new project and recreated my carve. It was a simple leveling cut so it took seconds to recreate. By starting fresh with the new project and having already run the machine setup, all was well. Thank you for that suggestion.