Several of you mentioned GPS Rollover failure, especially with Micrologic products. It is reported to be out of business. In a local Los Angeles boating paper, there is an article from Ken Englert of Maritime Communications in which he says that a well-equipped marine electronics dealer's service department will often be able to adjust the internal software or upgrade it to restore the system, including, in many cases, Micrologic. I don't suppose he would be much help out of the area, but for what it's worth, his e-mail is marcomm@aol.com. His phone # is (301) 821-4958. Good luck. FYI; as we speak, I am sending my Magellan 3000 XL back for therapy. Rick D.