I have always used a director board to run my shows. This year I want to project videos with the lights. I have a Toshiba Satellite C6550-S5234 with windows 7 on it. I have LOR and all my sequences loaded on it but cannot get a Comm port to work. How can I make it recognize the computer. I have 1 standard cable slot, 2 USB ports and 1 VGA port on the computer. Thanks.