No complete surround sound with Inspire P580 speakers

[Sureshot]

I've recently upgraded my mobo, and the speakers aren't happy. They are plugged in correctly but I only get 3 speakers + subwoofer working if I set it to 7:1, whereas it's a 5:1 system. However, if I set it to 5:1 I only get sound out of front and sub. I'm not getting any sound out of the centre speakers, having tried all configurations I can think of.

The speakers are Creative Inspire P580
Drivers: Realtek Audio '97
Sound card is nForce 4 (according to system info on my nVidia utility)

I can't get any sound out of plugging the headphones into the headphone jack on the volume control.

Is there something I need to enable/disable in the BIOS? Afaik the drivers are up to date, the speakers themselves don't have any drivers.

Any more info needed? I haven't done an external audio test on the various speakers, but given that I know they were all working on the last mobo it would seem a bit pointless.

 

[Abhas]

Not sure, but these might help you :
Creative Worldwide Support

http://www.tomshardware.com/forum/53227-6-plug-speaker-system

http://support.creative.com/Product...rtainment&prodID=15999&prodName=Inspire+M5300

http://support.creative.com/kb/ShowArticle.aspx?sid=15176

Too many links, but the last one is the one you should be looking 1st.
Have you tried changing the settings from the Realtek Audio panel??

 

[Sureshot]

Hmm, from asking on another forum it seems that the nForce 4 mobo is the problem, not compatible, and having searched the problem on google, it's quite a common one too. So I'll buy a PCI sound card. Any suggestions?