I have a TomTom Start. It works beautifully if I put a street and house number in but I have difficulty with a postcode. UK postcodes require a space in the middle like PH33 7NU but there is no space bar to enter that space. If I omit the space, there is no way of putting an enter or "done" in to find the map directions. Please, can anyone help as there is nothing about this in the instruction manual.