There is a problem with your CF card

[pinstripe]

I recently purchased a Kingston 8 GB memory card for my Canon 400D camera and it has worked perfectly until yesterday when after taking around 40-50 photos the message "There is a problem with your CF card. Please replace CF card". came up on the screen. Until this message appeared I was able to view all my photos in the normal way but now I cannot view or download them to my computer. Firstly, are these photos recoverable (as they are from a very special birthday party) and secondly can the card's be 'problem' be remidied?

[MalcolmY]

Have you tried taking the card out of your camera and putting it into the card reader in your PC? If this works OK it suggests there is a problem with your camera.
Also, have you tried a different card in your camera?