My 720 is using map 7.10 which for some reason when displaying the show contents using TomTom Home version 2.1.2.121 is showing the size as 1224.2MB. However the entire used capacity of my unit is 1955.8 MB with the other needed files. I'm missing 596.6 MB that I know is the map. When I download the map it said it was 1.7G. Anyone else have this discrepency in the show contents display? Any idea how to correct it? Basically the display has retained the file size of the 7.5 map some how.