Is it possible to run just the Norton antivirus, with a Norton Internet Security install CD? We found that NIS when active was blocking something from the Linksys router. We figured that having the NIS software firewall in addition to the hardware firewall was overkill anyway. I experimented with de-activating the software-firewall portion, but no go. It won't let me install just NAV either. Did I waste the purchase of NIS? I'm thinking I should just purchase NAV and move forward. We don't have a web site or anything like that, just email and web. Any comments or suggestions greatly appreciated.