Just uncheck the option "éteindre l'appareil si non utilisé" in the configuration of the battery in windows and add the software in the exception list of S2U2 to avoid the loss of the gps signal.
Some trouble to catch a GPS signal. So I launch TomTom, wait for it to catch gps signal then shut down TomTom and launch Run.GPS.
No altitude displayed. I wonder if this is because of my gps integrated or if there is something to set...