Just updated maps for the first time on a pre-loaded micro SD card and I'm now getting the above message. If I click through the message (which comes up twice) I can open the map screen and the map displays. It looks OK but is it?
Anyone else had this problem?
I've been on the wrong end of a million or so Garmin glitches over the years so I'm no longer surprised at this kind of thing - just a bit weary of them.