Hi Art
They are not lit up, all are red. They don't light up went hitting home switch not even when i hit the micro switch manually when in homing cycle, But on the diagnostics page the x y z light's up when manually hitting the micro switch but don't zero out the axis, Also when testing my axis limits they light up in the diagnostics page and stop movement as they should, so it's my thought that it mite be on the Mach4 side of thighs because Darwin is sending the single I guess to prove it out tonight I'll load the older Mach4 version 1 to see if it will work again.