Today Mach found a 'new' trick; I run a gcode file, close Mach, edit the gcode file and save it, load it back into Mach, and lo! Mach has loaded up the version of the file BEFORE I made changes to it.

I'm not imagining this, its driving me ******* nuts, how do I stop it ? Is this some kind of malfunction?

M21

Odds are good you are NOT saving to where you think you did (;-) Been there done that one a number of times. I hate the way Mach3/4 will always go to the last place you saved something NOT to the Gcode directory as it should.

(;-) TP

Me too! I take it that can't be changed?

I did have a flash drive plugged in, and got very tired and frustrated with it yesterday, so I probably did save to the wrong place.

Good to know it doesn't only pick on me, thanks.