Wondering what this Option does? When I check Reversed, it seems there is no effect. I have noticed that tweaking the other settings require me to close and reopen Mach3 before they take effect.

Under Port Setup, when I try to set the Kernel speed to 100Hz, the setting never stays. I tried this on two different computers, with CPU speeds >3 GHz, and my licensed file installed.

Are these somehow related?