I have a samsung intelligent LCD 10.2 megapixels camera. I got in 2 years ago. Last year the sd card wouldn't stay locked in the camera but it would still take pictures and it worked perfectly fine. Today I turned on my camera and it said there was an sd card error. I've looked up how to fix it like the tissue trick but it still won't work. I am using a sandisk 2gb sd sard. Can someone tell what's wrong with it?