Camera saying that memory card is full with only six pictures on it

I am having problems with my memory card. I have the sd1100 IS and a 1G memory card. The card is pretty old but for some reason every time I try to take a picture it says the memory is full. There are only six pictures on the card. Should I replace the card or is there some way to fix that?

Thanks for your help!

Have you tried formatting the card using the format option on the camera?

stu1811 is correct, you need to format your memory card in your camera and not in your computer or any other device.

one more thing to add... before u format have u checked if the SD card is empty or has files in it... check it on ur com

It also could be a dying card. BUt I would try a full format first. Luckily SD cards are cheaper than a roll of film these days.

most probably your memory card is fulled with some files that you cant see through usb connection from your camera...try to format it in your camera.