Hi, I'm having an issue with my Carminat TomTom in my Renault Megane. It keeps showing me a green screen with a picture of a laptop => SD Card => Navigation System and it will not go away. The green screen is on permanently even with the engine off. I've tried updating the SD card, copy to a new SD card incase the old is broken and it still stays on. Any advice or help please as I can't control radio, bluetooth phone etc whilst I have the "green screen". Thanks.