Anyone else having "wierd" effects on their nav system? Occasionally, (not always) the location shown on the map is several hundred feet "off" from actual. [This is NOT the lag due to the GPS system not keeping up with vehicle speed]. Example, we were traveling to a restaurant in the Portland, OR area, in traffic, going slow, no overpasses to block the satellite signal. About 2 blocks before we got there, the NAV computer told us to make a U-turn and go back. It thought we had already past the place! Fortunately, I could see where we were headed so ignored the instruction.

Talked to my "service advisor" about it and so far have no feedback.

Anyone else?