I too had a similar problem... but with the SD... all of a sudden it stopped working... saying the image was invalid and then not showing any pics at all... not even whe connected to the comp.. I was told to get a card reader as it could be the camera... well I got it and still nothing... I have that SD card just laying there in hopes a solution comes by ....*hopes*.. so I can recover my pics...

I hope you can recover yours...

while all this happened to me I read about this program that recovered deleted images (unintentionally or not) even after formatting the comp/memory card... haven`t been abe to download it (you have to purchase it )...