I have the Altec Lansing ACS56 4.1 speakers and I have an Abit Nf7-s v2 motherboard, but I can't get the two working together. I plug in my black surround sound cable into the appropriate ports into each piece of hardware but my problem is this: my rear speakers don't produce any sounds in games but work perfectly in the NVMIXER(although front speakers create much more volume than rear speakers.) I've tried vice city, cs source, and battlefield but no luck. I even tried connecting the black cable into the line in and setting it up that way but again nothing worked. So if anyone can help me, that would be great. I tried setting it up as 4.1's in nvmixer. thanks.