How can I make the Player [CharController] interact with Physic Materials

Hey Guys =) I have the problem, that my Player doesnt interact with Physic Materials or Physics at all. As I read in the UityDocumentation this is usual behavior of a character controller [ http://unity3d.com/support/documentation/Manual/Physics.html ]. The CC uses only Gravity and such - wich is bad.

I have a plane and added a Box Collider with the Physic Material "Ice" so that would the Player walk on it he would slight over the Plane. But no, since its a Caracter Controller he doesnt interact with Physic Materials. There has to be a way to do this please let me know if you know how =)