Howdy, Ty!
Indeed, I self signed it. Quite a process to get the certificate and get everything to work! Before that, the Pipeline wouldn’t work at all in Vista 64! However, after that, I’ve never seen any problem with Vista 64.
Very strange problem! Since it’s the pipeline that fails to open, that exonerates your sound card / spdif output.
Could you look at the device manager, sound video and game controllers, and check to make sure the Breakaway Pipeline is properly installed there?
Best regards,
///Leif