I just purchased the ROXIO EASY VHS to DVD for MAC and installed everything according to the manual. I think the program recognizes the USB device, but I get a solid green screen and cannot record anything. When I press "play" on the vcr it starts playing, but I do not detect a link to the computer and cannot see anything. I connected computer and usb-device by using a SCART-cable and Composite Video adapter. I installed this correctly in the Roxio settings. What am I doing wrong?