BlackBerry Pearl 3G 9100 / 9105

hey i have my BB pearl 9100 and whenever i plug the Sd card into the phone,i got message "unable to read card, due to fatal error" and the memory card its working properly, since i can plug it in to the computer and its read and i can upload and download files, already tried by downgrading from OS 6 to OS 5. have reset the device like a million times and same situation.

can someone help or is someone else having this problem??