I have 2 741e tablets for my kids. When I put their 16gb sd cards in the tablet, it gives me an error saying damaged sd card. The cards work fine in an old coby tablet I have and also work on my desktop. I have formated them from the computer. The 741e will recognize a 2gb card i have so it doesnt seam to be a hardware issue with the card reader. Anyone have a similar problem or better know how to fix this?