I have an ASUS "A7N8X-E Deluxe" mobo that has 5.1 surround sound card. I just got some Logitech 5.1 surround sound speakers. I'm running MDK 10.1 official. I can't seem to get the speakers working properly.

First off all, there's three outputs on the card, Center, Rear and Line-out (Which I assume should be Front?). When I run speaker-test -c 5.1 (or 5), Center and rear are switched and I get nothing from front. There's an option on kmix (kde front end to alsamix) that says "Duplicate Center", if I de-select that, then I get front and rear, but no center.

What do I need to do get this working in true 5.1?? I feel like my sound card is all messed up. Line in won't work at all, but Mic in does. I'd like to have both mic and line-in working. I feel like when I plug in the headphones in the front, the speakers should cut out, but they don't. Also, in Kmix and alasmix, my main volume slider doesn't work at all. In order to adjust the volume, I have to turn up PCM.

Can anyone help me?
Thanks,
Jeremy