I'm on vista and am trying to play my 360 through my PC speakers, I have the RCA to headphone jack converter. Although following a tutorial on how to do this, it didn't work, finding out that I had to plug the RCA to headphone jack into the line in socket (blue). Still no sound from the speakers when 360 is on but when looking on the control panel it shows sound being produced via the volume indication bars. I'm not sure if this is because of the crappy stock sound card I've got (Sigmatel or something?)? I've also ordered a pair of X-140 speakers which have headphone/aux support so will it work with those without buying a new soundcard??? Thanks for your help guys, BC.