New log:
- With gtk GUI, get "gdb not found", with no details
-> Crash immedialty, and its crashes when validate a track (with this error)
I've found another "bug", with the bookmark.txt (under /home/user/.navit). File is missing (probably need to be created by recording a bookmark). Made a file manually, and the alert disapear.

I think that the original installation of the Gtk library has been badly made (files or folders missing?)

What do you think about it?

Another annoying thing: I put a smaller map (thinking that is the map size is involved).. no change: the search fields doesn't return the streets i want to have.
But...
Tried to find the streets on the open street map system: they exists! I extracted my own map to XML file (.osm format), found the city, the street, controlled the GPS position with another tool: match! But Navit doesn't find it.

Is there a cache into the apply where is located the city, streets names? Maybe have i to clean it before using a smaller/another map?