I've had this Sprint EVO 4g (unrooted)for about a year and installed an 8gb SD card from Best Buy at the same time. Recently for no reason the phone will not recognize the SD card. I have tried: 1: Sync-Will not sync with any computer I use 2:Card Reader for PC. It sees the files but when I try to copy files or drive the files disappear. 3: EVO does not see the SD drive anymore I can not mount or unmount card. Any suggestions would be appreciated. I have a number of pictures and apps on this card and would not like to lose them. Thx.