I would like configure my 5.1 Surround System under Knoppix.
In Windows under the control panel i can select the box type (in this case 5.1 Sound System). But how can i do this in knoppix?

I already configure my sound card. Knoppix find it automatically. But i hear sound only from 2 boxes........

What can i do?
(I am new in linux please give me not complicated answers....)