I have a Creative Extigy sound card and for christmas got the Logitech Z5500 Digital speakers with decoder capable of decoding Dolby digital AND DTS (THX certified). So now I'm working on hooking up my game console (XBOX hooked up to the optical in with digital and DTS options enabled) to my Extigy and my Extigy outputting to my speakers through the optical out. I have disabled Extigy's decoding and have everything pass through to the speaker's decoder. I put DVD's into my computer and they come through pure digital or DTS (I know because the speaker's decoder indicates digital sound). However, whenever I put in an XBOX game (currently Halo 2 because it has digital sound), it does not come through digital. The Dolby digital light is on on my extigy unit, yet the output is not digital, only Pro Logic II. I've messed around with every option and looked through many forums, yet have not found any resolution yet. It's not my speakers, because they do output digital sound from my computer's DVD's. Is there something I am doing wrong here? Thanks in advance.