Yes what you say my friend is absolutely right I have tried the door programs trick twice but it's not worked Last weekend I stared the car with the dud key but realized it was only doing so because the original key was on the passenger seat and was picking up the signal to start up from it. Next morning my wife started car and reversed off the driveway and it cut out saying NO KEY. Later the alarm kicked off and hazards flashed. It took a while to stop it with proper key. The breakdown man said what I did should not have caused the cut out according to his Skoda dealer friend Disconnecting battery trick did not work. Local dealer wanted £164 up front for another key and up to 21 days wait and Green Flag would then have to get car to them. Just as my wife was ready to be taken to the dealer I thought it was an immobileiser problem and tried to start it again and it worked after 48hours. So now I keep that dud key out of ignition. I will try as you say and see if a car locksmith can ptograme it cheaper.