my dad was running norton on his computer and has been complaining that norton gives him update errors ever since i installed firefox. i figured it was just norton being gay, so i installed AVG free edition, and it too, refused to update. kept giving connection errors. windows firewall is turned off,and as far as i know there are no other firewalls running. he does have a valid internet connection as i am able to browse sites. he said this happened as soon as i installed firefox, but i can't see how that is possible. any ideas?