Hi,
OK, I'm at a loss as to why it does not work.
I have an ESS and I've had no problems with probing. I would not hesitate to recommend it.
I am still bemused as to why the Darwin parallel port wont work, it should, if it didn't there would be any amount
of posts about it. My concern is that if you buy an ESS and the problem persists.
As you know Mach4 has up to four independent probe channels, g31.1, g31.2, g31.3 and g31.4.
Normally I use only one probe channel and can successfully code it g31 without the trailing period and channel number.
Would you try coding your MDI g31.1 z.......
Clutching at straws I know....
Craig