......
I was just going to ask "So, should we reinstall the newer code.... just in case there were other things updated?", but I checked the site and the 600 is not listed.
They took the link off for the software update for the Explorist 600, but the page is still there.
http://www.magellangps.com/en/support/prod...plorist_600.asp
When you download it, it's the explorist 500 firmware update. Which seems to work fine with the 600, I used that file to update my 600 recently, because my unit was on 1.67 which was really buggy. But this update seemed to work fine.