Zone Alarm security suite works on my XP PC right now, but will not work with my Vista PC even if it says Vista ready. Does that mean that I need to upgrade to Home Premium or Ultimate Vista maybe ? I talked to ZA. support they said to download their lasted updated version which I did , but got the same results. I all ready bought this second archive ZA. version, so it would be great to get it run like my other XP ZA version running now