For the past 3+ months, the subforum tree links on the top of this site's forums have failed to work. Clicking on any of the links brings me back to the main forum site instead of the actual sections I clicked on. For example, if I'm reading a thread in the iPhone forum and I click on the iPhone subforum tree link, it brings me back to forums.macrumors.com instead of the iPhone subforum. Any idea why this has happened and is it possible to fix it? It's the same issue in all my browsers and on all my computers. Thanks.