Try format the card inside the camera.
Won't that wipe the card clean?
Are you doing anything differant slick?
Do you plug cam into the puter or use a card reader?
I upgraded to a 4GB with the new cam.
Had to buy a newer reader becuase the card is high capacity
Didn't know that til I got home and had to call store...fella says
"well you'll have to drop in and purchase a new reader"
Yeah that'd be all good if I lived there...60km away
Until I got the new reader I was plugging cam direct to puter to download them.
Pentax 18-55mm,Pentax 50-200mm,Sigma 17-70mm,Sigma 70-300mm, Sigma 50-500mm