I know this might sound dumb, but in windows volume panel in "playback" and "recording" in windows 7 can you select the capture card as the recording device and select it also as "listen live" I think is whats its called. I don't know if they have that option but the capture card should have an audio device to playback sound. Also are you sure its not your codecs getting in the way of the audio in stereoscopic player. Maybe some audio codecs are stopping it from playing back with audio.
Can you get audio from the avertv program itself if it has one, it should. Also did you have HDMI sound before when hooking your dish receiver to a lcd tv or somthing and is there an option in the dish menu to select where the sound should goto as an output.
_________________System Specs:
2x Amd phenom ii x6 1055T
Asus Motherboard DDR3-16GB
Microsoft x6 keyboard - x5 mouse - vx 3000 webcam
Soundblaster Hs-1200 headset - 900mhz headset -
voice buddy3x 5.1 audio system, sony, yamaha, logitech
Blu-ray drive
Acer H5360 3D-Ready Projector
2x 32 inch 60hz anaglyph1080p workstation monitor/tv/gaming
Nvidia 3D vision Kit
3x dlp link 3d glasses
Edimensional wireless glasses, 2x wired glasses
Nvidia Gtx 670 superclocked 4 GB
Nvidia Gts 450 ddr5 OC 810mhz 1024 GB Physx card
Ati 6450 1GB Workstation/Internet
Nvidia 7600gs 256mb
JVC - Digital SD Camcorder 800x zoom
x2 Amd htpc, Server, Playbook and netbook
Windows 8 x2
waiting for autostereo cubed pixels displays:)
http://www.adaptengagecns.com