Recently, while talking to a rep from the company that services our school's laptops, I heard a statement that I hadn't heard before. Their rep was telling me that NAV 2005, which runs on some of our computers, updated last at the end of December 05 (when the subscription ran out), would be more than adequate as an av defense for some of our computers that are used to get online. He was saying that the chances of getting infected by a virus that isn't in the definitions file are rather slim. This really goes against the grain of what I have been led to believe. I would have thought that even a freeware av ap with updated definitions would be better than a pro version that hasn't been updated in a while. Is this true? Perhaps another way of expressing this question is to wonder what percentage of viruses in the wild, are new (say, created in the last month or two or three) as opposed to the older ones that would be in a 6-month old definitions file. Any takers?