I just used the sigmatel drivers that were preinstalled. It appears that it's working fine, but I just don't really think that it's a true s/pdif output, I have everything setup the way it should be, but I just get no audio, but I did get audio on my media pc when I put the soundcard in, so I know how to setup the software to output 5.1. At this point, I'm not too worried about it anymore since I already have the new soundcard up and running, and the chances of me needing to output 5.1 from my laptop are extremely slim.