XYZ on After Effect composition

Hi everybody,

I hope somebody can help me. For some reason, I can't see the XYZ parameters on the handles of any element on my After Effect compositions. I'm talking about the XYZ values that you see as you scroll your cursor over the 3D handles of the camera, graphic elements or light on a composition. It's driving me nuts becasue OI know it must be something very basic but I can't figure it out !!!