GUI box doesn't work?

for some reason lately I have been trying to use the GUI stuff that is available in the unity script references and they don’t seem to be working. I have worked with them in the past and all of a sudden I can’t use them any more. I tried copying and pasting the code directly from the reference and am getting an error that “GUI does not contain a definition for Box” when I use:

	void OnGUI() {
    	GUI.Box(new Rect(0, 0, Screen.width, Screen.height), "This is a title");

has any one else had this problem?alt text

Don’t name your classes the same thing as Unity classes. (i.e., don’t call scripts “GUI” or anything else that Unity uses.) Technically there’s a way to work around that, but it’s simpler if you just don’t.