Hi all.
I have been using Mach3 for 2 years now, I have no problem at all until yesterday. I am unable to jog the touch head with key board left, right, up and down key, but it works fine with flys-out jogging control.
Anybody have suggestion on how to fix this other then doing a Mach3 re-install?

Sounds like your Jog Control is switched off, see pic. If its on then it will show a green area around it.
Hood

Another thought in addition to Hood above, if you're using a different screen or screen set, you must have a jog on/off button on any screen that you'd like to use the keyboard to jog with.

Dave