I'm using MKVmaker to rip my movies. For blu ray, I just select the HD lossless audio (don't hit DTS 3/2 english...). I believe it's recorded in 5.1, just don't know what settings to hit on the windows 7 side. I tried configuring the surround sound, but didn't seem to help. Just get sound coming through left and right floor speaker. All speaker are selected on the receiver.
NVIDA GTX 560ti
Thanks in advance for your help