After reading a given PSG Forum thread, I click the "Back" button on my browser (Internet Explorer 9) to get back to the list of thread topics. But perhaps 70% of the time a single click doesn't work. Instead, I need to double-click the back button in order to avoid browsing history that mysteriously appears labeled "Facebook.com/connect/ping". It's so annoying, especially given the fact that I don't even have a Facebook account. Anybody know whether this is just an issue with my browser settings, or if it's an issue with the PSG website?