Have just got this set up and pretty pleased. However, I bought a Fujitsu 1GB SD Card to add the european maps on it. Whenever I add more than 1 map, the whole card currupts and I have to reformat it. It seems to work fine with other media, has anyone had the same issue or is their a solution. I have been adding the country maps to seperate SD cards to get around this issue, but I would like the all on one.