I just bought the N810. I wanted to load another Map database, but I get an error saying there is no room. I went out and bought an extra 8gb miniSD card and installed it. I still get the message that there is not enough internal memory. Is there a easy method (which is current to OS2008) that would allow linking of the external map data to the MAP program? If I unload the maps I do not need, will I always be able to download them again when I need them or should I download them now just in case the web site goes away?