Hi, I recently got a motorola bravo At&t, and its been fine until I got a new sd card. Now when I take pictures or videos they show up as a grey square. The same thing when its loading. Videos I can't erase. It was fine at first but after the first 9 pictures it did this. Also certain apps say that its full. But, its 8gb and I only have about 200 songs and 9 pictures. Please help. New to android in general. Thanks!!