I run an HDMI cable from my Radeon HD 6950 to my Sony 50" HDTV then run an audio cable from my HDTV to my Sony A/V receiver. I have always had problems getting the multi-channel 5.1 sound coming from my PC to play louder on my Sony A/V receiver speakers even though this is not a problem with the 5.1 sound from my PS3and cable DVR. Trying to turn up the volume on the on the Windows task bar in lower right corner of the desk top does not change the volume on the A/V receiver. I do not have any problems with sound if I use my Logitech Z-5500 PC speakers connected to my SoundBlaster card. Is there a setting in CCC or the Windows 7 control panel to help turn up the volume on the AMD High Definition Audio Device so I do not have to turn the A/V receiver all the way up? Is this due to not having a 1.4a HDMI cable? Would I only get 2 channel stereo with HDMI versions 1.2 and 1.3? The Sony A/V receiver only has HDMI pass through so would a new receiver with true HDMI inputs and outputs solve this problem? Sapphire Radeon 6950 HD 2GB(is able to output multi-channel up to 7.1 audio formats) Driver versions: 12.10 and 13.04 Windows 7 64-bit SP1 Asus P5E3 Premium Wifi-AP Thermaltake Toughpower 1200 watt Dell 30" 3007WFP monitor Sony 50" KDS-50A2000 HDTV Sony HT-7000DH A/V Receiver HDMI Monster Cable(could be version 1.2 or 1.3) Intel Quad Core 2 Extreme QX9770 3.2 Ghz 4 GB DDR3 Dual Channel Corsair 1600Mhz SoundBlaster X-Fi Titanium Logitech Z-5500 5.1 PC speakers