Shoutbox

hi
a friend of mine has a problem with his internet connection. he can login in yahoo and msn messenger, can use p2p programs for downloads, but cannot open any site, neither in FF not in IE 7. but the sites open fine when he uses the same connection on his laptop. i told him to run spy/adware scans, virus scans, reinstalling drivers, even windows format didnt help. can someone help here?
thanks