I am attempting to download a mapset to a Garmin GPSMap 60CSx using Mapsource. After building the index, Mapsource always reports there is insufficient space (e.g., needs about 400 MB but only 900 MB free). I am using the latest update to MapSource (6.15.11.0). This error occurs no matter how few maps I attempt to load.
Running on Windows 7 Ultimate, 64-bit, on a Dell XPS 15 with i5 processor.
I can successfully load the same maps on the same 60CSX using my desktop, which runs Windows 7 32-bit. It is only when using the laptop with Windows 7 64-bit that I get the error.
Thanks for any assistance.