I'm having an oddly specific problem with my site.
Right now I have a tabbed widget to display Popular/Latest/Featured posts, set to a max of five items per tab. On any pages this works fine. However on all posts the widget lists some twenty entries under Popular and you can't click over to any other tabs. Doing so jumps you back to the top of the page and has no effect on the widget. I've tried a couple of other tabbed widgets thinking it might be a bug with the one I'm using, but they all do some variation on the same thing.
This started relatively recently, and I can't think of any changes I made which could have caused it (the only change I made recently was to the site title). I'm running a custom theme called Fleximag, using the native tabbed widget that came with the theme (although as I mentioned, I've tried several others). Right now my best fix is just to pull the tabbed widget from all posts.
Has anyone seen this before? Have any ideas?