GPS Data calibration possible??

[wldbest]

Hi,
I am in Qingdao, China.

I had downloaded all maps of qingdao(google map).
and I had set up all POIs.

The problem is ..
The map and the GPS position is not matched at all.
Real Position is about 400 meters left than map postion.
so I always have to interpret gps postion to map position.

Can I correct this problem?
It seems that google map has some error in Chinese data.
I saw same problem in other program & posting.
Please let me know.

[Menion]

duplicate thread ... viewtopic.php?f=26&t=348