I've seen all of the problems with the 0,0 coordinates and I'm having the same thing happen. I've been messing with this thing all weekend trying to get it to work but no luck.
I ordered the maps of Texas where I live. Even when I pull up the topo map of my home and press the trackball, it goes to 0,0 coordinates. I've left it outside for an hour and nothing comes up.
I have a BB Pearl 8130 and have no problem getting fixes with BB Maps or Navigation software. Aside from having a bunch of topo maps that I can scroll around on, I don't have anything that's useful.
I do use Verizon, is this a problem? Has anyone determined how to make this thing work when it takes you to 0,0?