This is an odd problem, but it's something that's annoying me, and there might be a patch or update that can deal with it. I quite often view sites that use an auto refresh script to update sports reports. In every case, it's just plain text that's automatically updated. There is one site (and only one), however, which causes problems: http://http://www.guardian.co.uk/sport/2010/oct/02/ryder-cup-day-two-live is an example, although it applies to all auto refresh pages on the guardian.co.uk site. It works just fine when I'm viewing the site, but when I close the page - whether closing the tab or moving to a different url - the browser freezes. All aspects of the window become unresponsive, and the browser has to be closed via the task manager. This only happens when I close/leave the page, and I've not found any other auto refreshing page with the same effect. It also only happens in Firefox, not in IE. Can anyone understand what's going wrong here? I'm baffled.