Hi all. I'm using RC1 build 5600. Despite my pretty old specifications, it works pretty well! Anyway, I'm finding Media Center to be amazing. All media in one place! Unfortunately, I do not get sound for the recorded TV samples, DVD playback or for the "set up speakers" test sound. The rest all works properly though. I'm at a loss to explain why that particular thing doesn't. I get no error messages or anything. Ulead DVD player operates fine for DVD playing. But naturally, I'd rather use that as a last resort. My specifications are: AMD Athlon XP 2600+ GeForce4 MX440 (!) 512 DDR RAM Sound card I'm not totally sure of. Via AC'97 is all I know.