Video Not working

Apologies if i am in the wrong place but i am at a loose end. Techs cannot sort nor software provider.

I have a Quadro P1000 video card everything works fine (4 screens) with the exception of a security camera feed I just get a grey screen. If I take the video card out and use the on board card no problem.

Do I have a tick in the wrong box or conversely a box not ticked in the NVIDIA control panel?

Thanks in advance if anyone can help.