Ok, I think somthnig is up and its not electronic.  I have changed all the settings in the ports and pins to use either probe or input 4.  Neith work.  I examined the XML file that is stored in the C:\mach3 folder and I cant see any of the changes i have made.  Its like its not seeing the xml.

Am i looking in the right place?

A

You need to look in the xml named after the profile you are using, so if you have a standard mill profile it will be called Maxch3Mill.xml If you have made a custom profile then the xml will have that name.
Hood

Yeh i have done that...mine is called fuente master mill.  It just does not get any of the changes.

A

So when you close Mach and then Restart the settings have not taken?
Check by right clicking on the xml and choosing properties, that it is not set reaqd only.
Hood