i must have read a million posts but i cant find the answer. i bought a 64gb card to do my sat nav update as the website specifically says it must be a card thats over 32gb. it then says it must be formatted to fat32, which i can do manually however the update software is saying it cant format the card to fat32 as its over 32gb?? can i just manually copy the update files to the card or do i need the program to do this for me?