I have Movie Studio 13 Platinum Suite on a DELL 8700 XPS with a GeForce GTX 745 graphics card. Right after I installed Studio 13 I went to preferences and under the VIDEO tab I could select the "GPU acceleration of video processing" and change from 'OFF' to the name of my video card (NVIDIA GeForec GTX745).
Now it no longer shows up and only gives me the 'OFF' option. I did download the latest Studio 13 build ( 943 ) since the initial installation. Did the latest build have something to do with this?