Well, i checked all the plugs a couple of times, and they all seem ok, it seems like its getting power becouse the light is red untill i push the switch in, and then it goes out. The souncard i'm using is an onbord card on my motherboard. it's a VIA AC97 card... I pluged in the headphones, but could hear nothing. The Y conector does work and the soundcard also does, so i have no idea whats going on...