I have a hand held Garmin Legend GPS unit. It seems to me that when I try to find a waypoint that I have marked it takes me in the opposite direction. I gave about $240 for the thing a few years ago and have not used it effectively. Does anyone know the trick for this contraption?

I think the compass is moving around rather than the line that points to where you need to go. In other words if I know I am facing North it may be pointing North at another direction. What gives?

Thanks