I have tried to load the G Code from both my PC and the Pi with the same result. Thanks for the link, this was one of the web sites I used when setting up Pronterface on my Pi. I did load all the dependencies for python.
It’s looking like the problem is something in Pronterface. I got some G code from the web and tried this with the same result.
Thanks for your help! I think I’m at least I’m narrowing down the problem.