so, a bit ago i got to setting up a BM intensity pro 4k into a mac pro so i could record PC gameplay, but i cant get the card to detect video signal. in my searching for a solution, i found some sources that say changing the nvidea color format to YUV/ or YCrCb is a way to fix it, but now where i look does it say HOW to do this. is there someone who can help me with this?