I recently purchased the DualTV tuner card, and installed the PureVideo DVD decoder that ships with the package on top of my existing PureVideo DVD decoder Platinum Edition. Now the decoder only plays stereo audio.
The software installation portion of the DualTV tuner installs the PureVideo Bronze decoder from the DualTV software CD. The Bronze version supports Dolby Stereo output. If you have an existing copy of the PureVideo Gold or Platinum decoder, you should NOT install the Bronze version.
If you have overwritten your multichannel Gold or Platinum version with the stereo Bronze version, please follow these steps to recover:
1) Visit www.nvidia.com and download the latest Platinum trial version http://www.nvidia.com/object/dvd_decoder_1.02-223-trial.html
2) Use the activation key that you received with your Gold or Platinum version purchase to unlock the trial version.