Cordillera 0 Newbie Poster

Ok. That is what happen.
Both Pc running Xp. When install ADSL the one with was running Dial up Internet did not work, reading driver stop operating. So I turn to the older Pc to install ADSL. I put a Connect Access 621 Modem and run de disk. Everything run normal, Networking is not a problem. Except for the MSN , is run in the main one. It run a test and point to a "Key port" problem o Firewall. But I have treated everything and can't find the way.
Any help please.
My provider toll mi to change my internet explorer to “Fire Fox. Same trouble.
Thank for any help