Quote Originally Posted by sergio2 View Post
Hi,

There is already a GUPDATE.GCD file into Nuvi .System folder.
I find that very strange, because .GCD file put into Garmin folder on Montana disappears after the update.
So do I have to delete this .GCD file before doing anything ?
No problem! You can leave GUPDATE.GCD or delete it. In portable device like Montana the GUPDATE.GCD always deleted automatically. All Nuvi do not delete this file...