Hi, Have been using my Garmin for about a year now and wonder if anyone has experienced this problem with any high end GPS. Under a fairly heavy canopy, I notice that my built in compass has a very difficult time telling me north. I have went in and calibrated it and it has not helped. If I look at the long/ lat numbers, they are dead on. If I go with the directional pointer, it's off by a little to almost the exact opposite of my intended target. I have to use a secondary compass and quickly spin my gps around before the screen adjust to match the GPS north symbol with the direction my good compass points to north. This is then accurate. Anybody have this built in compass issue?? Thanks - George