Ok, so I forced that cd out and forced (with the player dismantled but connected) the v27 in, waited a bit, and it's running ok now, THANKS TO THE FORUM PEOPLE ADVISES, much apreciated.

The software was updated from 3-2/50 to 3-2/51, but I'm still missing a lot of maps.

Now how do I burn recent maps for this radio-nav system?

Thanks in advance.