I bought a 16gb Class 6 card to replace the 8gb card that came with the EVO. I put some music/photos from my PC onto the new card and stuck it in the EVO. Everything seemed to go ok, but when I went to use the camera, it showed a black screen with what i think was a pic of an SD card for about a second then just closed the camera app and went to the home screen. Was I supposed to copy anything from the old card to the new one or do anything else before I switched? I just put the stock 8gb card back in the EVO for now until I figure out what I'm supposed to do. Thanks.