I'm a newbie.  Just getting my plasma table up and running.  Bought it used and made some improvements.  Upgraded from Mach 2 to Mach 3.  If I choose plasma icon from my desktop I can jog X and Y but not Z.  Display shows Z is moving but it isn't.  Checked output pins etc. all good. If I plug Z cable into Y or X it runs fine.  If I open Mach 3 Mill from the desktop icon all axes work well.  Wondering if I need to download an d reinstall??