I got a 32gb Sandisk microSD card for my Atrix. The phone recognizes that it has been inserted, and I get an SD card icon with a star on the corner at the top of the screen. I have a notification "Preparing SD Card, checking for errors". This notification and the icon never go away. In "SD card & phone storage settings", it seems that the SD card is not recognized at all. What's wrong? Thanks for the help.