When he uses LazyCam, does he use the Mach screen ie; FILE>LazyCam....
I assume that he installed LazyCam when installing Mach.
I had the same problem, a long time ago, darn if i can recall what was wrong. I think i just did a reinstall
of both and all was fine. Sorry i can't be of more help.
BTW, what version of Mach and LazyCam?
RICH