figured I try one more time..
Mach4.. ESS Smoothstepper.. M26 bob.. randomly I find that one of my output states (On/Off) doesn't match the actual state of the output on the M26 board.. cycling the output in Mach4 corrects the problem. So Mach4 is not losing communication to the ESS.. its always on the M26... different outputs so its not the output itself or the pin. Anyone have a similar issue?