Works fine in Media Center as long as long as video is maximized. If attempt is made to run inside a window within Media Center, then image and audio stutter to much to be watchable if Aero is enabled. Disabling Aero solves that (This happens under 32-bit, too). When running successfully in a window, resizing the window any little bit causes the video to freeze, so don't resize it. I think this is a a problem under 32-bit, too.

Have not been able to get Hauppauge's WinTV software to work under x64 at all. Installs but get no video. This card seems to only work within Media Center using Vista-provided drivers.

Works only with less than 4GB of memory
newest drivers and software work in Vista x64 but are not quite stable. Couldn't get sheduler to work in my Vista install