I have a Roland CAMM 1 CX-24 Cutter witha parallel port and a 25 pin serial port. I am trying to connect it to my new os X lion computer. I have a parallel to usb cable and use it to connect the roland vynal machine to the old G5 mac and it works fine. When I connect it to the new imac it is not detected. Any ideas? I am using the flexi sign 8.5 software.