walking up stairs

I built a very simple room with a set of stairs, all from primitives within the software. When I move the character controller to the steps, it hits the steps and stops. I want it to climb up the stairs…what am I doing wrong?

Any help would be appreciated.

increase the (gasp) step offset:

http://unity3d.com/support/documentation/Components/class-CharacterController.html

You could just create a collider from the top of the stairs to the buttom of the stairs so the Character only walks on that.