After each reboot, whether spontaneous or a battery pull from me, phone was telling me to format sd card, so I did a FR. Did not load a few apps I thought might be the culprit. But it still happened. Completely removed sd card and has been working fine now since this morning. Any suggestions as to what I can do about this, I really would like to have an external SD card for music. I tried 2 different 32 gig san disk sd cards.