Hello,
We recommend you use the latest ArcPro screen for Mach4, available for download from the Vital Systems website.
If you want to turn on the torch and jog the machine using this screen you will need to disable the THC Mode. There is a button on the screen for THC Mode. The LED next to the button should not be on. Once you disable the THC Mode you can fire the torch using the M3 command in MDI and you can then jog the machine. If you would like, you can contact us via email or call our office directly. We can also help you by connecting to the machine remotely if you would prefer.