Hi. Turned on my ds lite and when the DS simply software tries to load, i get the message "SD/TF error". Tried micro sd card in my PC and it won't recognize it. When I try to click on the drive in Windows explorer, it says it is not formatted, and do I want to format. I tried another sd micro card, and it works fine. What could have happened to the micro sd card, and is there anyway to recover all the data, specifically the save files? Thx.