I have a desktop (Win XP, amd 2400xp) which will not connect to the internet (broadband) when opening Explorer or Firefox from the desktop. However if I go -File-off line-then back on line, it connects, also if I go to XP's Security window and 'search for updates', Explorer opens and I'm on line, anti virus checks for updates and will download them, and Zonealarm will check for updates too, got me puzzled...any ideas?