Sorry Gianni for the delay,
for the RBTolls works well, it's absolutely that all the files
are in this directory:
C:\Program Files\AirNav Systems\AirNav RadarBox 2007\Recorder\
Attention: exactly with this capital and tiny letters.
this is your error message explanation
in the next version, we can read and write in whatever directory.
with a time modification for the speed recorder and the level for
the gpx files.
Patrick/F6GSG