I just finished building my first computer, and I have a question. I went to plug in my speakers, Zylux Speakers with Subwoofer, manufactured through Dell, and they wont work. The computer isnt recognizing the speakers, and I cant hear any sound at all. Is there something I must do to enable audio. All volume is up to the max, and I do have a sound card. Any help would be greatly appreciated. Thanks in advance!!!