Hello There, I have a Magellan myself, besides me knowing some things or two about GPS'S
Give this a try, seems to work for me and others most the time.
Try this for me to see if this works: Let me know.
It needs to be rebooted. Turn off, by holding off button down. Then once
it is completely off, then turn it on, BUT when you go to turn it on,
keep on button depressed, all the way until it turns on and then some
for about 15 seconds, now you just rebooted system. Let me know, if does work, please click on the thumbs up to showed your a happy customer. Thanks Mike