Make Rigid Body in 2.53beta?

I succesfully fractured a cube in 2.53beta, and I thought I’d run a physics sim of it falling apart. But the buttons for making objects into actors and giving them friction and form and what-not seem to be missing. Anyone know where they went off to?

If I remember right, it is kind of non-intuitive. Or really makes sense:D

Try selecting a different render system up top. Not Blender Internal, the game engine. Then the options appear.

Ah, that worked. It didn’t quite fall into a neat pile, though, it blew apart as I feard it would.