Don't recognize any of the previous posts for Atrix about the phone asking for the PIN number to reformat the new SD card I just put in today. I have the Atrix 4G. What PIN are they talking about? If I knew that, I might have a fighting chance. But otherwise, can I go ahead and put stuff on that new SD card .... without formating it? Eventually, will I need to know that PIN number? Is it the PIN that goes with my ATT Wireless account access? Sigh.....It went into the phone so easy too. Where can I go to get the latest manual info?