I've just put together a new computer, and one of the features I would like to use it for is a second home theater to get the kids out of the living room when entertaining friends etc. I've got an Intel Pentium 4 motherboard based system with an ATI All-in-Wonder 7500 video card and a Creative Sound Blaster Audigy 2 Platinium eX sound card. I am using Windows 98 SE operating system, and wondering if this is the root of my problems. Does Windows 98SE support Dolby Digital playback? Or will I have to get Windows XP? Any insight as to how to correct this problem will be greatly appreciated.