This is a common problem, its caused by corrupt >wireless and pay over $100 for a map update or even send them your unit for even more $. see http://www.finedrive-acc.com/shop.cart?action=ITEM&prod_id=F400-08CP

Option two: The other solution was to send it to Fine Digital but they closed their doors in the US so they no longer support us customers. or C&C also offers a repair service for about $150.

Option 3 Because Fine Digtal closed their doors and left us all stranged, I made a DVD with map >PC with a DVD drive and SD card reader to use it. you can find these DVDs on ebay for $18 which basically covers my costs only. to find it, search ebay for finedrive dvd...