I have a NVR5216-16P-4KS2 with 11 cameras attached, and now I would like to view the cameras on an Ubuntu Linux machine. I have tried Pale Moon browser (the latest 64-bit), and Firefox with the same result. I get logged into the NVR and go to the Live View window. I see all the cameras listed on the left side and when I select a camera, it displays just fine. I can get the 4x4 grid filled, but now the fifth camera just replaces the first camera. It looks like I am stuck with 2x2 grid. Does anyone know a way to get a larger grid, or additional pages of the 2x2 grid?