I had all of this working when I first got the Bose, but I had to disconnect it all and cannot figure out how to get it reconnected. Ive got my pc connected to my Samsung HDTV using a DVI cable and an audio cord. To play my TV through my Bose, I use an optical cable running from my cable box into the Bose, which is playing fine. Ive got a second optical cable coming from my Sherwood stereo receiver. I used to only have to switch the optical cables on the Bose to play my PC through the TV. Now I only have video and cant figure out what Im doing wrong. I know, Bose isnt the most respected or preferred sound system... but it is what it is, and its all Ive got. Thanks for any advice you may have!!!