Hello-- I'm currently using only Windows firewall, and thinking of installing another to replace it. I know that there can be conflicts with 2 firewalls running at once. However, I've been told that, since I have XP sp2, that some of those conflicts have been cleared up. What's the deal with running 2 firewalls? I used to have TrendMicro AV with firewall, and ran it with Windows with no problems. I may install just a firewall, OR an AV w/firewall....but I'm still checking them out. Which ones won't cause a conflict with Windows, if I decide to keep that one?-----M.