Red Cross on SD Card image on screen

I tried to hook my TomTom One up to my Apple Mac today and it didn't work.

When I then got in my car to go somewhere, I switched the Tomtom on and on the screen a image of the Tomtom appeared with a moving picture of the SD Card coming out with Red Cross appearing on the card.

When I remove the card the diagram then instructs me to put the card back in. When I do this the red cross appears again.

I have tried resetting it but it doesn't do anything.

Does anyone have any ideas as to what could be wrong with it.

Many thanks

[getsurfers]

Yes, sounds like the memory has been wiped of the apps needed to run.

Contact TomTom support, or return to the retailer.