I decided to use core because there are a few 1080 movies running choppy / out of syn with ffdshow. I have coreavc pro 1.9.5. On installation it doesn't allow me to uncheck CUDA which was fine because I have a supported card with 182.5 or later drivers but when I plaed a video nothing. I'm using legacy renderer and tries vmr9 and 7. Nothing...went into coreavc and click prefer CUDA and nothing.
Any suggestions as to what my be up? Container is mkv btw.