I have connected all the cable of my VCR to the USB device as requested but I can never get video on the preview screen. All I get is a green screen and sometimes the sound works for a few seconds but no more. My problem is NOT that I don't have a video signal, it is that when the program detects the tape it won't show anything. I am using an ASUS computer and am relatively sure the problem is not the USB port. If anyone know what to do please help me.