Need Help! go home wont lift z 1st MAch3 / plasma table

when I sued to push the go home button in mach, it would lift Z then move X or y, now drags the torch on the metal isntead of lifting it off before moving either x or y - it only happens if I use the go home button, the safe Z height is 1.0" and that works fine while cutting. I'm not sure what changed or why it does this, and cant seem to find it in mach, for some reason I think I ran into this beofre long ago but cant seem to find a note on it anywhere

any suuggestions (besides remembering to raise z before using go home <g>

thanks