Just to extend my thanks to Jim Dingus in Mach3 tech support. After losing my licence file (no! not too many points on it) I got a download reference emailed to me within 24 hours. I had customised the licence via Mach3 support, so they had my details and could re-issue.

I will not go back to the original licence vendor as my barge pole won't reach Devon.

Cheers,

Rob