Can't sort out sound in Windows 7!

DazedAndConfuzed

I've recently bought an Asus RADEON EAH4850 graphics card (http://www.lambda-tek.com/componentshop/index.pl?prodID=B249410) and MSI S775 INTEL G31 motherboard (http://www.lambda-tek.com/componentshop/index.pl?prodID=B256617) but I can't get the sound sorted at all.

I'm connecting to my HDTV through the HDMI cable but there's no sound, the picture is fine though.

AND when I try to run it through my 5.1 surround sound it doesn't happen either. I've tested the cables and they are all fine, when I try to configure / test the speakers it makes a noise when you check the rear left and right speakers, so something works a bit!

Any ideas, I'm stuck!

Thanks

davester

is the volume turned up for that particular audio out?

DazedAndConfuzed

As far as I can see the volume is tured up fine, if it wasn't for the fact that when I run the test it makes noise through all the speakers (albeit not at the right time) I'd assume it would need reinstalling