I have a Montana 700i, actually it's my third unit and second cradle. Just after I bought my new 700i I found that it would randomly turn off. Sometimes this happens after a few hours, other times less than 30 mins. The other day it turned off twice in 30 mins. I have to press and hold the power button to turn it back on. When it restarts it just picks up where it left off. The unit has spent all of it's time so far in the car cradle in the car with the USB cable plugged into the 12v socket adaptor.
The dealer has done all they could by replacing 2 units and the cradle so I've contacted Garmin AU, but that has been a frustrating process and I haven't gotten anywhere except to learn that someone else in Australia has the same fault.
Anyone else got the same issue ?