I am having terrible trouble setting up windvd to play 5.1. I have a creative soundblaster 5.1 audigy card with 5.1 speakers but when I try to select 6 speakers from the Windvd audio menu, only the 2 & 4 speaker settings are highlighted with 6,7 & 8 speaker configurations greyerd out and unselectable. How do I let it know that I have a 5.1 set-up?

Big thanks to all who have taken the time to read and/or reply.