Thanks very much limoncello
Mine is a facelift 2005 car registered in May. I guess produced before 12/05. I'll need to look up how to check my software version. I remember reading sometime ago that the lights could cause problems. I went through a period of ensuring they were off before switching the car off but it didn't cure anything. I'd also swear the clock doesn't wait 1.5 hours to reset itself but I might be wrong so will check.