You may have to format a new memory card.

After you have transferred your photographs from the memory card to your computer, format the memory card in the camera.

When formatting a card, all of the photographs on the card will be deleted.

Follow the instructions in your camera instruction manual carefully.

Often, there are two buttons with Format printed next to them.

You may have to press and hold both buttons, for several seconds.

Format may appear on the LCD screen.

Then, depress the two buttons again to start formatting the memory card.

Press any other button to exit formatting.