32 bit Win 7 Pro, Mach 4.2.0.2803, ESS plug-in 1.0.1.132, ESS at address 10.9.9.9 directly connected to adapter card.
When I Config the ESS plug-in from Mach 4, the dialog opens and if I do nothing except Cancel the dialog, Mach crashes. I see a dialog with the message "Mach 4 CNC GUI has stopped working".
Thanks for any advice.