Just installed Windows 7 over Vista on Sony Vaio notebook. Turns out that the networking does not work. Routing tables etc are ok; I can ping arbitrary hosts on internet and on my LAN, however all www connections (with Firefox as well as IE) are dead -- both in LAN as well as on the internet. So I guess it has something to do with packet filtering or firewalls. So I turned off all firewalls etc. Still not working. Also telnet to LAN-hosts is inoperative. My Linuxboxes and Macs are working flawlessly... Any suggestion?