I have a Magellan Roadmate 5145T-LM. I updated the map to version 61.1 Now it is not working. it turns on but does not connect to the satellite. The round disk on the screen just spins. If you suggest resetting the GPS unit I have tried. There is no reset button so I just held the slider in the on/off position, I read that somewhere.\n\n Any ideas. Thanks.