i just installed my D3 and i have signal from 7 of the 8 satellites but it still doesnt accuratly show my position its off by 100-200 feet.

it will say that i arrived at my destination when im not even there yet.

any suggestions?

deal with it, thats navi. vss will help but its still not perfect

My D3 improved a ton after hooking up the VSS. Weird because I was very happy with the accuracy of my D1 without the VSS hooked up but the D3 definitely wasn't as accurate without it

It also depends on how tele atlas placed it on the map in the software.

teleatlas is the main culprit