Tested on a GeoVision NVR with 8.4 and 8.5 software. Setup for 1 camera per 3 second scan but it will not show up in 'fullscreen' mode. It has a little window showing the camera and a black border around it. It initially would go to fullscreen mode when I hit camera scan so I know it's possible I just don't know what setting or what I'm missing. Tried restarting, reinstalling and upgrading to 8.5 from 8.5 with the same results. Anyone?