My Satnav has worked perfectly well since I purchased the car even when I updated the information in 2011. The battery recently went flat and I started the car with the aid of jump leads from another car. This caused the fuse to blow on the supply to the Cabasse radio and Satnav and this was replaced. Now when on driving through and area (new road) that is not on the disc, the satnav loses itself and has to be reset on the 'current location' menu. I have cleaned the lense on the laser cleaned the disc and reloaded the software but it still loses itself. Has anyone had this problem and how did they solve it?