chat window can't be closed

[Dumal]

Hi All,
I currently use ThorUI and love it. I have one probem that may not be related to ThorUI, I can't close chat windows, accidently opened an unwanted chat window and now I can't close it. I tried clicking on close window but nothing happens, so now I have it moved as far as I can off to the side. Is there another way to close them.

Thx