Got a problem...I think...

[Greatwall]

I downloaded this UI, put together by Damea.(I'm lovin' it!!! )
But as soon as i go to attack something it freezes up like the artic!
i can sit there but as soon as damage is done to something, then it freezes I've tryed typing and running, it doesn't freeze on anything but attack, and spells....Did I do something wrong or what? Thanks!