Flyguy:
Don't have both of the firewalls loaded. I've heard that ZoneAlarm is notoriously unstable anyhow. I would use Kerio myself, but you should invest < $100 and purchase a hardware firewall/router.
Go to
http://support.microsoft.com/default...S;windowsxpsp2 if you're having issues.
When in doubt, turn everything off. Start turning things back on and you'll soon find the culprit.