](./images/smilies/eusa_wall.gif)
Issue: Brand new Garmin Oregon 550
Brand new CD Garmin Topo Map
Action: Insert CD, allow to extract files, identify GPS. All easy so far. Checked on MyGarmin account - recognises Topo map as unlocked.
System ran through, GPS says "Can't unlock maps"
OK - found fix for that; now GPS "can't authenticate maps"
On Settings on the GPS, the Topo map does not appear.
Any ideas?