I can't drag a GUIText into Public GUIText box! HELP!

Hello,

So I have been taking the Unity Roll A Ball tutorial, and everything was awesome until this happened.

So basically I have a public GUIText since I am supposed to drag my text into the box for counting points in the tutorial. But it won't let me! I can't figure it out and there are no errors in the console; and I have checked my script multiple times. It just won't let me drag ANY thing into it. I think it might have to do with the current version of Unity I'm using(4.5) maybe?