I am having the same problem playing sound on 5.1 speakers using WMP 10.
Sound plays fine out of all speakers using Real Player. Were you able to
find a solution?

"nes_saja" wrote:

> I have logitech speakers and an Ectiva soundcard both supporting 5.1 channel
> sound. However, when playing DVD's and mp3s using Windows Media i only
> recieve sound from two the two front speakers, centre & sub. I have used Jet
> Audio which plays mp3's in 5.1 so theres nothing wrong with the speakers.
> Plus the 5.1 channel testing thing from the windows website showed that the
> speakers worked fine.
>
> I have no idea how to fix this problem, can someone help a brother out???