Hi guys,

I just bought a GTX 460 card and want to use the high res. audio (DTS-MA/TrueHD bitstream) from the card. I tried to install and reinstall the NVIDIA driver over and over again but I just keep getting 'no audio devices are installed' under sound options. The strange this is that the NVIDIA control panel lets me choose my receiver (Onkyo TX-NR500 under the setting 'setup digital audio' option 'HDMI'. At my Device Manager there is shown 4x 'NVIDIA High Defenition Audio' under 'Sound, video and game controllers'......

Setup:
Asus GTX460 with 295.73 driver (also tried the latest)
ASrock H61M-ITX board (http://www.asrock.com/mb/overview.nl.asp?Model=H61M-ITX)
Windows 7 64-bit with SP1 and all the latest updates
Latest DirectX version
GTX460 connected to my Onkyo TX-NR5008 AVR with mini-HDMI->HDMI cable
Onboard audio disabled in bios

If more information is needed please let me know.
Hope someone knows the solution for my problem.

Thanks!