Have been using this happily for a year. Today switched it on, set my journey and then started the car engine (Volvo V70). The result was a series of vertical stripes on the screen which I could not instantly clear as the device would not switch off. Any ideas please?
I am hoping to remember to start the car before switching on if this is the thing to do.
I am hoping to remember to start the car before switching on if this is the thing to do.