Reconfigurable menu display for a vehicle navigation system

A vehicle navigation system for a motor vehicle comprises a display screen (18) and an input device (20). A menu (26) having a plurality of menu items (28,32) is displayable on the display screen and the menu items are selectable by the input device. The menu has a first configuration when the motor vehicle is stationary, has a second configuration when the motor vehicle is moving, and has the first configuration when the motor vehicle is moving but a passenger occupies the motor vehicle. When the menu is in the first configuration, all of the menu items (28,32) are selectable by the input device. When the menu is in the second configuration, none or only a portion of the menu items (28) are selectable by the input device.