Adding variables to the script components

Ok, I got the following setup:

http://imageshack.us/photo/my-images/571/unityerror.png/

I try to add a new GUIText variable named randomText to the components at the side, so I only have to drag and drop the GUIText into it, to make it simpler.

But for some reason, the item doesn't show up in my components bar, while it does for the other things which I've added earlier. I have no idea what happend. Anyone else know what to do?

Thanks,

Dave