I have the same problem
that's what I wrote on other forum.
The first time I install the nvidia drivers and start PowerDVD 14 everything works correctly in 3D, there is 3D and everything is smooth.
After I install 3DTV I have slow effect when using 3D, it just goes slow-mo, returning to 2D it works well.
It seem that it set the resolution to 1920x1080p 23 hz instead 24 hz in the Nvidia CP, I can't find what causing it, it worked fine before but I can't find the reason it happens.......
SOLUTION :
It seems that using the Headphones with 5.1 output (creative ZXR) causing serious delay and slow down using all movie players in 3D.................. what the hell......... changing to normal 5.1 speakers out put makes the problem go away.
Changing in PowerDVD to Stereo instead the auto detect fix the problem too, need to Playback the movie again.
Using 5.1 Speakers and changing to headphones while the movie plays still run well.
** Should I use WASAPI in PowerDVD ?
This message was edited 1 time. Last update was at Nov 28. 2014 01:11