Not to be argumentative, but rather to be sure we are all using the same facts...
1. I do have an E-stop - I've mentioned a couple of time that I used it and it worked. My point on that issue was that having a button labelled "STOP" on the screen that does not stop motion is, at best, misleading. I get it that my expectation the button would work the same as in Mach3 was an erroneous assumption, yet perhaps reasonable for someone who has used Mach3 for a decade. (In Mach3, the "Feed Hold", the "Stop" and the "Reset" buttons all stop motion when pressed.)
2. As you can see from the screen shot I posted in my first message, the soft limits were not enabled at the time (although they were configured). So, my next question is, "if the soft limits are not enabled, is the issue of soft limit configuration even relevant?"
3. I have verified that when the soft limits are enabled, X axis soft limits are configured correctly and work as expected. Next question "what else should I check"?
Again, thanks for any assistance.
Brian