Bought a copy of Vista in the States last month - just the upgrade as a)its a lot cheaper than the UK and b) you dont need the full version even if you want to do a clean install - see a previous thread on pprune. There is no issue with buying it in the US - it works the same BUT I sold my Vista on ebay (as it was unregistered) as it was a waste of time and my copy of Sage did not work - do you really need Vista???????????????????