Sorry, Mara and other readers, I did not make myself clear enough. It was a N800 with BT GPS, it has been performing excellent in USA but cannot get a fix in China. It was sometime log on ok in HK and rarely made it during the flight. That was 12/07, I did not have a N810 at that time. I was travelling with N800 and 770 and again, I already noticed at that time, the 770 battery last much longer and was serving as a fail-safe to my N800. Surprise, surprise.

I still dont get even today, why my BT GPS fix in less than a second inside the house in USA but wont even fix in southern China. I posted that question when I am back here, do not recall seeing any good explanation.

bun