I got off the telephone with tech support and they told me to check my machine firmware settings, sending me the following link:
It turned out that I had one improper setting.
It should have been:
With the change made, the X-Carve Pro was up and running again.
I ran my first tiling job on the X-Carve Pro with Easel, a plywood Christmas tree for McKenzie. I found the plans on Etsy.
Though not perfect (I have to work on my alignment), I am pleased with the results.