Hi, I have tomtom home 3rd edition version 2.6. I have suddenly discovered today that my sd card was not recognised by the tomtom device. When I put the card on the pc i saw no files in the folder meaning there were no files on the card. I dont have back up files uploaded onto my pc. I guess the sd card has been corrupt or some other reason. Could you help me with this. Do I have buy another card or download maps again. If so will the downloaded files be compatible with the sd card I have. Pl help me out with this problem.