Cannon ELPH SD600 - SD Card error "Memory Card is locked"? What can I do to fix this?

I checked the switch and it is in the unlocked position. Nothing is broken- It won't accept my no-name 32gig card nor will it accept my 8GIG sandisk card. It will only accept my 4 gig no-name card. I can't keep buying SD cards that don't work in this camera. Can i reformat my 32 gig card or somehow get... show more I checked the switch and it is in the unlocked position. Nothing is broken- It won't accept my no-name 32gig card nor will it accept my 8GIG sandisk card. It will only accept my 4 gig no-name card. I can't keep buying SD cards that don't work in this camera. Can i reformat my 32 gig card or somehow get it to work? Any suggestions would be greatly appreciated. Thxs!
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