My turn to try it. TomTom is pushing their quarterly updates, but I can't imagine they'll keep their customers happy by deleting their favorites and other settings every three months! I SO want Google to buy TomTom.
* First, I did an "Explorer Backup" of my unit, giving me two backups today (one for the old map, one for the new map).
* Then, I copied the MapSettings.cfg from my old backup to my unit. I knew I was copying the right one, because it was 16k instead of 3.15k.
*
I used Windows' "Safely remove hardware" function to unmount the unit. Like from my Linux box, that doesn't trigger the reboot like shutting down from Home does. When you close the connection between the unit and the PC by unmounting the drive, you just pull out the USB cable and the unit reboots.
* My Favorites and Home settings were back where they were before! Hooray!
I didn't end up with a reboot loop, and I didn't have to do any delete/re-add to get my favorites to show up. I suspect that by keeping HOME out of the loop, I may have prevented the glitches described before.
I did just notice one thing, though. My unit is a ONE, not a GO. Perhaps the mods could sticky this thread in a more generic location -- or is it already there and I missed it?