Well, in my experience, running two firewalls, AV's, etc, isn't really good- lot's of times the programs tend to interfere with one another. Try turning off the XP firewall and see if Norton will let you in. As I said, I'm not familiar with Norton, but does your version have any privacy functions such as blocking cookies, etc? If so set it to accept cookies. Chances are with the XP firewall turned off it will be fine, but if not, I hope A Norton user will come by with ideas.