I'm pretty sure this is their missing texture texture. I got an error message during the loading bit but since it didn't make the game crash I dmismissed it. It said something along the lines of "Texture not found, loading default one instead."
So yeah, I'm pretty confused. It was supposed to load blue_sky2.tga or something.
Edit: Forgot to post a picture.
![Image](http://i.imgur.com/GEsM3eQ.png)