Wirelessly posted (htc Pocket PC: Mozilla/4.0 (compatible; MSIE 6.0; Windows CE; IEMobile 7.11) Sprint MP6950SP)
Yeah like puff said, take your card out of your device and put it in a SD Adapter and plug it into a PC or Laptop in an sd slot and see if you can read the data on it if there is any data left.
Then transfer any files to your pc. Then format your card fat32. Then put any data back on it if you have any and then put it back in your device.