I am running a 800v3 card with a ribbon cable to a 16 port video capture card. I am running gv800 v6.0.5 . The drivers seem to be installed properly. I have updated my vid card drivers. (geforce 6200). My pc is more than sufficient for the requirements. Without a camera hooked up i get a video lost on the camera. When I hook up a camera I just get a black screen. I have hooked up the cable to another system and it works so i know that it is working. I am fairly new to installs of geovision. Any help would be awesome, thank you