Hi there, I've built an HTPC recently and for the most part I'm pretty pleased, but I am having some sound issues on DVD playback. I fitted an XCard/Sweetspot combo, and fortunately this gives flawless DVD playback, but most software players give me trouble. My system is an ASUS P4P800-VM motherboard, with a P4 3Ghz processor, and 512Mb RAM, running Windows XP. I'm using the onboard sound, feeding my amps through the S/PDIF. I started out with Theater Tek, as it seems to be the player of choice, but got a refund after the 7 days as it simply wouldn't play movies smoothly - which seems a bit daft given my spec. I have since been messing around with Zoomplayer and Sonic filters (and Power DVD, and Win DVD...), with basically exactly the same results - I get stuttering on pans and should I pause the movie, the sound drops out completely when you unpause, and you have to stop and start to get it back again! I downloaded Reclock today, to see if that made any difference, but I get no sound at all when I use it! (Picture looks great with no sign of any stuttering though!) I assume the onboard sound is the culprit, but has anyone else managed to solve this? I can't be the only person running this kind of setup surely? Thanks for any help, Keir.