I have a D5100 and just picked up a 32GB prospec SDHC memory card. I formated it and fird a couple of shots and got a message saying the either the card was defective or that card couldn't be used in the camera. I tried formatting it again and got 6 or 7 shots before I got the same message. I didn't see any spec in the owner's manual indicating a limit for the size of memory card that could be used. Is there a limit for the size of memory card that can be used in the 5100?