I have used the write in Mach 2 & it works fine, but when I tried it in Mach 3, the G code has zeros in it for the X and Y positions. (The letter height is set at 1").

I must be doing something stupid -- any suggestions?

Did you pick a font? I had the same problem the first time I tried it. Most likely you haven't checked one of the necessary boxes or buttons.

I picked a font, but when I went back for one more try, I found that the direction was not checked. Now it works. I think in Mach 2 it defaults to 0 degrees, but in this version there is no default.