I am resurecting this thread because I have been having issues with my '06 FEH Nav system. I took delivery on March 22 and had no issues with the Nav system until yesterday. I have noticed that when I start the vehicle, I will be in the red for signal quality for several minutes even though there is no reason for this as I am in the open. The other day I was getting on the interstate and it thought that I was on a road to the left of the insterstate so it kept directing me based on these directions. I then entered the HOV lane and eventually the Nav caught up but it wanted me to get back on the regular interstate. When I got back on I noticed it frequently went to the "calculating a new route" screen everytime I passed an exit it because it was wanting me to turn around. I exited at the correct exit and it thought that I was further up the interstate so it was wanting me to exit and turn around. I then proceeded to the street and it told me that I had passed it and to make a u-turn even though I was turning on to the street. It then went in to off road condition even though I was on the correct road. I gave up and turned it off because I knew where I was going. Today, it was doing the same thing. It seems like at times I am off by 40 yards so exits come up on the nav screen before I am really at it. Also, about every 3 minutes it was going into the calculating route screen even though I was on the course. When I was driving back tonight, I was on the right exit but it thought that I was still on the freeway. I have had no actual lock ups where the system quits responding and am unsure what to do. It worked fine until now and I have these problems even when the nav is in green or white status. Any one have any suggestions?