Thanks Darren,

Found the site, downloaded the software and printed off a test certificate - so at least I have a fall back now in case I'm too disorganised to get a real one. btw the certificate comes out formatted for A4, is that normal?

Another btw - i got a powerball this weekend, if I ever wrest it back from my son (last seen thrashing away to a 10 figure score) I'll let you know the results.

Robin