John i can hit the stop button change tool and reset offset at any time throughout the cycle.

Ah ah that's a joke surely.?? . . .Only last week on Mach yahoo someone was complaining that the almighty Linux guru's wouldn't or couldn't fix the G540 issue they insisted it wasn't Linux at fault it must be G540 or PC at fault.!! Even thou it works fine with Mach on same PC.!!
Like i said sour grapes