THanks.
it didn't seem to work...

what is this 'service pack 2' that people are on about?
do i have that?
i have no idea.
i've got xp home edition but i'm not sure i've ever noticed a security centre...
i use sophos antivirus
and i'm protected by university firewall...
haven't found any viruses on my comp since i've arrived here...

maybe it is just that they have blocked cites called 'chat' via wireless...