Penokee

Geocaching newbie here. I just got a used Magellan explorist 310 that had the "track up" set when I got it. It doesn't compute very well in my brain - things work best with "North up". Problem is that I've looked at the downloadable intructions online Setting Map Orientation. I'll list them here (copied and pasted exactly from the manual): 1. Access the Settings Menu. 2. Select the Map Options button. 3. Select the Orientation drop-down menu and select the reference used to define the top of the display (Track Up, Course Up or North Up.) When I get to #3 and select the drop-down menu the only option is "track up" rather than the three that the manual says it should have. Anybody else have this problem? Know how to fix it? Do I have some setting picked elsewhere that precludes me from having a drop-down menu that I can choose "north up"? Thanks in advance for any help!

Is the unit still available? What does it have for maps loaded on it?