This morning whilst trying to programme my Sat Nav, it locked up and when I switched the engine off and re-started, the screen has gone blue and the Sat Nav option has gone? I cannot eject the disc from the unit, is the unit fried? If not does anyone have a solution. Thanks in advance.

Not really sure what has happened there, but try disconnecting battery for 5 mins and then see if it will reset when it gets power again.

worth a try