I have a problem copying Tom Tom Maps to my 2GB SD card, when I get to 960MB on the card, the card crashes and will not let me copy any further data to the card. I thought the card was faulty, so I bought a second 2GB card and exactly the same happens on both cards. I have tried a different computer, and still cannot load any data larger than 960MB on to it. I am using a USB2 card reader to load the maps. What if anything am I doing wrong? Is the card wrong format for such a big file, should it be FAT 32? Any suggestions.