Disappearing text

For some reason all the text in the game has disappeared. It started when I alt-tabbed to Teamspeak. The text in the chat windows went black and the UI text changed to dark orange and dark blue. I couldn't see what I was typing in text areas and when I attempted to shutdown I was presented with a grey box with 2 buttons, I had to guess which one was the OK button. Logged back in again and there is now no text at all. Highlighting what is in the chat window only highlights a green background of where the text should be but I can't see anything in it.

Just found out it's an issue with the Teamspeak overlay plugin.

I've also had an issue with this but it has to do with Character Names. Any type of character name, such as myself, other players, npc's, mobs, etc. cause a bug where all the text on the screen disappears for me. I posted about it back in the Beta Forums and it still hasn't been fixed.