Forum update breaks popup's in Safari

Before the forum update, when using Sarfari, I often had problems adding links and video using the icons at the top of the standard comment form. After the update all of the pop-up functions are completely broken in the normal editor when replying to a post. I get nothing but a blank screen. These pop-ups work in Firefox and Chrome. Please check it out. It does not matter which forum I am in.

Occasionally, switching to the Advanced Editor I can get a pop-up to work. This functionality works perfectly in other browsers and always has.

OSX 10.9.2, Safari Version 7.0.3 (9537.75.14)