I received my 590lm yesterday and as the unit was new, had a very large map update. Every thing worked OK and Express said it would take 6hrs 45mins, however, 15 hours later it had not moved from 6hrs 45mins. I had no choice but to disconnect the unit which then failed to power up. I've sent it back to the supplier and get a new unit in two days.
What do I have to check or do to ensure the new unit can update the maps in Express? Can I do a test first so I do not get tied up in Express? Will I have to uninstall Garmin Express and reinstall? I am using Windows 7 and have no problems downloading with any other software. Thanks, Bann