The compass doesn't work, and no this isn't a calibration thing. The plastic piece with the east, west, etc markings spins if I use my fingers. And the truck symbol is stuck in a position pointing at 7 o'clock. I'm really not sure how this goofy thing works, but the pix I see have the truck pointing straight up and it looks like the east, west plastic piece does the spinning, is this correct? Should I be able to spin that piece by hand?