When loading up X-Plane I am quickly told it is running in demo mode. It requires me to input disk 1. When I put disk 1 into the disk drive it is quickly rejected. I believe that the disk is probably damaged and therefore cannot be read. However this leaves me playing only in demo mode, despite having bought the whole game. Is there anyway too help. Perhaps a code to replace the damaged CD? Any help would be greatly appricated. Many Thanks, Fergus