hello i bought a 4 cam PCI DVR Card, and night vision cameras, i got one of them to work because it is USB, played with it a bit it is quite cool , but the problem is getting the other cams to work i plug in the cables from the cameras to the back of the DVR card just fine, the power is ON on the cameras, and the PCI DVR card appears to have installed fine, no conflicts detected. it all seems to be connected fine and the power seems to be on, but i receive no signal at all from the cams, i have tried a few different programs like camplexor lux riot argus etc. and try to detect the cams but nothing!. the cameras appear to work when connected to the tv. is there a diagram of showing where to plug the cables etc. ? , i have PCI DVR card in the pci slot and installed, i didnt install the extra 4 ports that came with the 4 camera pci card. the cable goes from the dvr card to the camera, and the mains power to the camera. please help i have no idea why it isnt working i am getting rather p'd off. only having 1 of the cams working and it is cos it is USB.