Drove down to Sandwich in East Kent yesterday, got to within about 1/2 a mile of our destination and M & M lost the satellites, just dumped us! It eventually retrieved them again once we had left the town about 2 miles behind us. No amount of going back through the menu seemed to work, several times the system told us that it could "see" 3 - 4 satellites but on the map screen, the satellite symbol was in red and the sat nav wouldn't work. This is only the second time this has happened in almost 12 months, but has anyone else come across this situation? Are there black spots where for some weird reason sat navs lose their signal?