Hello,
Thanks to all here. I got navit running on my N900 with our help.

1) navit is unstable if started from GUI
I think the D-Bus configuration or implementaion in navit is not correct.
I use this "navit.desktop":
[Desktop Entry]
Encoding=UTF-8
Type=Application
Name=Navit
Exec=/opt/navit/bin/navit
Icon=navit
#X-Osso-Service=org.navit_project.navit
#X-Osso-Type=application/x-executable
Terminal=true

May this is not a good idea. I don't know for what this D-Bus is used. But it runs stabel with this configuration.

2) I think we should create a new package and upload it into the repository.
To be able to simply install navit and get a working configuration.

Is there some where an explanation about create the navit package (on N900 or on Win XP). Then i can do it.