i keep getting the following pop up every 5 minutes or so blocked access to : barclays-trial.main/................ then it has an ip address at the bottom i have run a full scan with updated virus definitions but it does not find anything. what is causing this pop up? is it something on my computer trying to communicate out? i am on windows xp (fully updated) and running firefox. have also run spybot with latest updates and found nothing.