The battery is full, I'm fairly certain the memory card isn't full, and when I try to take pictures, a little red dot and "SB", and what looks like a little clock, blink on the top right-hand corner of the screen. :/ What is this problem and how can I fix it? Thanks so much for your help!
Added (1). Pictures have been taken on the card in this camera before, but a few years ago. The pictures are still on the card.
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