Ok, so i got my evo 3d about three weeks ago. and the GPS, Navigation, etc. worked like a charm!
I get quick fixes, the location is accurate and worked as good on both highways and somewhat busy cities like Stamford, CT (for example).
Now, recently, I was driving my normal routing across states on I-95, and suddenly the GPS signal started to get lost, and when it fixes completely (that is, 8/8 birds), the current location (with no blue circle around) shows me to be 100-150 feet off the road i am on. So imagine driving 75+ on a highway, when your Navi thinks you are on some side roads or no roads at all and tries to navigate you back on the highway.
What I did - hard reset, GPS Status/Test, etc., ##GPSCLRX##, reverted back to Old Google Maps, installed Navigon, tried using TeleNav and Google Maps, ALL OF THEM show me as being 100-150 feet away from my actual location!
did anyone have similar problems?
p.s. I drove exactly same route two weeks ago, and the Google Nav was working perfectly fine.