Charles, this is what shows in the Inspect Element window when I loaded the current thread; the last little bit under ‘Uncaught ReferenceError’ happened when I hit the New Comments button when it showed new posts, at which time, I got the Spinning Wheel of Doom that wouldn’t clear without a full refresh.

However, if I hit the New Comments button when it doesn’t show new posts, the button/page acts normally; the Spinning Wheel spins and the button greys out for a second, then returns to normal.