Thats just the diagnostic screen, and is there to make sure all systems are talking to each other and are operational. You can also calibrate the touch screen in those options. You can normally access this menu by hitting MAP/GUIDE+ MENU + CANCEL
If you'd like an updated version 4.A2 (2012) of the maps, I have a spare 'backup' disc I burned for someone who ended up not needing it..
If you'd like an updated version 4.A2 (2012) of the maps, I have a spare 'backup' disc I burned for someone who ended up not needing it..