I just installed a new cd rom up to a new soundcard. Everything's going fine through the speakers, but I plug my headphones in the headphone slot on the front of the cd-rom drive and there's no sound. I went to all the volume settings and nothing appears to be muted or turned down. Is there a wire that I didn't connect? I assume maybe the soundcard isn't connected to the drive or something, but I don't know. All my cd's, dvd,s and other sounds are working fine. Just no headphone sound. Any help would be appreciated.