Report "Card Locked! It is definitely NOT the lock tab. This is my sisters camera. She has used this card for a while. She took it out to try out a card I gave her and when she put the original back in the camera, it says "Card Locked!" whenever anything that would alter its contents is attempted. I have tested this card in my own camera and it works and I tried my card in her camera and that works. Why is this one card suddenly showing up to this one camera as locked?"