I just got a set of speakers brought to me, they are boka model sw-2000. I plugged them into my computer, but i can only get the subwoofer to work, the actual speakers that connect to the subwoofer, you can't hear anything out of them. On the back of the computer i have ports for 6 different plugs, they are: ctr bass, side spk, rear spk, mic in, front, and line in. Do i need a line out plug to plug into, because i don't have one?

Thanks for your time

Brandy