I am behind a router here at my home network and I am unable to play the "Internet Checkers" game which Windows XP brings. Does anyone know what port it runs on so that I can unblock it on both my firewall and my router? Or could you please tell me how I could find out what port it runs on? (I have tried searching the M$ documentation, but in vain). Thanks,

Sorry, I know this isn't really security related, but it IS a noob question and it does involve networking....+ I already have 2 threads going in GCD...lol