I am having a problem getting both camera 1 and camera 2 to display at the same time, both analog cameras connected via RCA. Each camera will show up independent of each other but not side by side. Even if I set up a 4 way screen only one will display in its box at a time. Why do I want to do this? Not sure but I figured there is no reason it cant be done. One is a Flir the other a Sionyx.