ulteriori info ingrazie per l'aiuto
in effetti con l'Oregon si fa upload/download con trasferimento files, e funziona benissimo. Ecco le istruzioni Garmin:
"
The Colorado or Oregon does not have upload/download or moving map capabilities when connected via USB.
When the GPS is attached to your computer it will enter USB mass storage mode and it will become visible as a disk drive. In this mode data can be transferred using GPX files which OziExplorer supports.
To transfer data from OziExplorer to the Colorado, use the "Export to GPX (Wps and Tracks)" option on the Save Menu to save the data in GPX format to the Colorado [drive]:\Garmin\GPX.
To load data from the Colorado to OziExplorer, use the "Import GPX File (Wps and Tracks)" option on the Load Menu to load the GPX file.
If you set the GPS Interface to "Garmin Spanner" and run the Garmin Spanner software (free download from Garmin) on your PC it will emulate a serial port and output NMEA data for use by other software. Note : Garmin Spanner is not compatible with Windows Vista."
http://garmincolorado.wikispaces.com/Data+Transfer