Bone Shape

Hi here i am with another little problem , i’m building my rig adn i come from maya so i love really bad cool shapes made by nurbs… so i built my nurbs shape but when i put the name of the shape in the custom shape of the bone it just disappear and i didnt find it nowhere i tried with nurbs solid etc…i made it just with a poly cube :S nobody knows why?

[http://img709.imageshack.us/img709/8813/picture3bf.th.png](http://img709.imageshack.us/i/picture3bf.png/)

Try checking the “wireframe” box in the Display panel for the bone.

http://imgur.com/rJ4XOl.jpg