I have been using Mach3 for about 3 months.
Often times when I try jogging to set up the origin for a file the jog screen locks up and I have to either wait about 5 minutes, reset or sometimes have to restart Mach to get the jog controlls working. All I do with the jogging sceen is switch from cont. to step and use the arrow keys.
I like Mach3 but this is getting annoying
I do notice some back emf noise comming from the steppers. Could this be screwing things up?

Thanks