I loaded the AFPD and I am getting a "Unable to locate the usb interface cable." I Downloaded the FMS flight sim online and everything works fine. I am using a Hitec Flash 5 Tx and a Hitec usb cable. Any help would be very much appreciated Thanx in an advance.

AFPD will work only with the original usb interface, due to copyright protection. If you wish to use the two-player mode with a slave usb cable, you will still need to plug in the original usb interface.