I just completed a reinstall of my gaming desktop PC, downgrading from Vista to XP (or should I say upgrading ?). Anyway, I first installed Comodo Firewall but Steam and Xfire had problems connection. I uninstalled Comodo and installed Zonealarm. Still the same thing. I uninstalled Zonealarm and am now using the default Windows firewall. I already ran WinsockXPFix, flushed DNS, using OpenDNS Dns server instead of my provider ones but still no luck.. Steam and Xfire won't connect, I get a connection error. Please tell me what this could cause since I can't play games right now Thanks.