> I am having a similar PCM-good/AC3-bad issue on my Gigabyte GA-M55plus-S3G > w/ Creative Audigy 2 ZS: i'm doing SPDIF-out on that exact same motherboard. there's no need for a separate soundcard like you have. the GA-M55plus-S3G has a coax SPDIF-out header on the motherboard. cheers, lincoln.