I have a brand new Garmin zūmo 590lm. I have installed a open Street Map over California on it. (from Garmin.openstreetmap.nl)
But I am having problems with it.
When I enter some addresses on it and try to Save it as a favorite the GPS just shuts down.
It also sometimes shuts down when riding and restarts after a few seconds… Just to south down again.
Is anyone else having these problems or have any ideas what I can try?