Oh, I know how you feel. Magellan has the worst TS and Customer Service of any company I've EVER had to deal with.
After endless calls with no resolution to the problems I was having with my Explorist 500, they finally referred me to an auth. dealer. I shipped the unit there and called the guy 3 wks later to follow up. He was incredibly angry with Magellan and had too many negative things to repeat here.
Anyway he finally ended up replacing my unit, which I took immediately to the store from which I bought it. They allowed me to return it when they heard how disappointing Magellan is as a company.
My amazing BF bought me a Garmin Vista HCX for my birthday this past weekend and woohoo !! what an amazing little GPS. I love it !
I would suggest you document every moment you spend on the phone and make sure you get the names of the "Customer Service" people; otherwise, you'll end up repeating your story to the 2nd Customer Service rep, because the 1st one neglected to document your 1.5 hour conversation and problems.
And on and on,...........
Good Luck !