Problem steinberg ur824 with mac 10.8

Hello, I have steinberg ur824 and I installed on mac 10.8.2 with tools for ur824 v106, but in system preference - sound appears:

" El dispositivo seleccionado no tiene controles de salida/entrada"
“The selected device has no controls output / input”

I can not change anything, either audio settings / midi in mac.
I have sound on headphones but I can not configure the card.

Sorry for my english