Hi N9JIG and AN, I found I got so many problems with Win 7 Updates, I turned them off back in February, and haven't missed them at all. I've got the Win 7 Ultimate (ultimate PITA maybe!) installed and found almost every update corrupted something, or caused hang ups (not just AN program) - did a complete re-format of HDDs, lost quite a few Acer add-ons. I don't run any protection systems, and touch wood and whistle have had no apparent problems - the bank account's always empty anyway! I'd be inclined to run and install latest updates, turn updates off altogether, re-install RB (3.13 in my case) to a separate file as has always been advised in this Forum under C:/AirNav Systems .