Hi, First thanks for any help anyone can offer. I'm using the M-Audio 2496 Soundcard, connected viz coax cable to my Outlaw 950 Preamp. And currently using the 7500 video card connected S-video to my TV (although when my Samsung 507 comes in, it will be DVI connected). Oh, Windows XP as well. What I want to do is this... Play DVD movies in DD or DTS, utilizing the digital coax and my stereo system speakers. Play Windows Audio Media mp3's using the same. When using my computer for any other reasons, I want to hear the sound out of my TV speakers. So, I have a few questions/problems I've encountered. Prior to TheaterTek 1.5, I used PowerDVD and could pass an audio 5.1 signal without a problem. I can't get it to work with TheaterTek. I haven't changed any wiring since then and have unistalled PowerDVD. To let you know my settings/options... Under Control Panel/Sounds/Audio, I have 4 choices, 3 of which start with M Audio Delta AP...and end with either S/PDIF, multichannel, or 1/2. (I've been setting it to S/PDIF) .. Are these the rights drivers for the 2496 sudio card? Same choices under Control Panel/Sounds/Voice and I chose the same S/PDIF. Under Contol Panel/MAudio Delta Hardware, I haven't changed anything from when it was working and I think it is correct. And Within TheaterTek, I keep choosing SP/DIF under the audio menu, and under that I have many choices... The two I'm not between are Direct SOund M Audio Delta S/PDIF and M Audio Delta S/PDIF. I'm not sure which to use here. There is a signal being passed though it is prologic i think because that is what TheaterTek sometimes gives an error and defaults to. *****UPDATE**** Well, I somehow got it to pass DD and DTS. Now there is about a 3 to 5 seconds delay in audio, with the video coming before the sound. Any ideas? ***************** OK Assuming I can get that to work, the M-Audio card also has standard L/R Coaxial audio output connectors that I can connect directly to my TV. If I choose the Multichannel option under Control Panel/Sounds/Audio, it will pass the sound, but not under any other setting, and doesn't that setting preclude me sending a digital setting? As anyone can see, I'm confused. Any help would be greatly appreciated.