Rogers Yahoo Norton XBOX 360 + Windows Media Centre + Vista + Norton Firewall = Help?

XBOX 360 + Windows Media Centre + Vista + Norton Firewall = Help? - rogers yahoo norton

I try my Xbox 360 in conjunction with the Windows Media Center, and I am running Windows Vista Premium that Rogers Yahoo! Norton Firewall 2006 installed, but I can not access the settings of Norton Firewall. I configured to enable the firewall configuration window for Media Center Extender, but still can not connect. He always says that I am separated from my XBOX, as it launched an application UI unexpectedly. Any suggestion is welcome. Thank you!