I'm trying to update my Tomtom ONE (v4) with to the latest map
Western Europe 1GB 860.3126 .. For the moment, I'm still using everything original for the moment: 7.903 navcore, SD-MAPS-675.1409-TA.2007.01 "Western Europe"-map, ...
Still, the map seems to be to big to fit on the device (even when I would remove everything from the internal memory). Windows reports that the internal memory is 958MB big, and the map takes some 970MB in total.. ...