HI,JUST BOUGHT 53 PLATE ILLIAD BLUE,47,000 MILES FROM A DEALER IN DERBYSHIRE,LOVE IT,BUT CRUISE CONTROL DOES NOT WORK,READ A FEW PROBLEMS ABOUT THIS AND SOME SAY IF IT HAS HAD AN ECU UPGRADE IT CAN CAUSE CRUISE PROBLEMS,DEALER KNOWS NOTHING ABOUT UPGRADE SO ANY CLUES????THANKS,PETER