[GRASSLIST:5734] region/location/projection problem

[ljin at hunter.cuny.edu]

Hi, 
I am a new starter for GRASS. I create a new location and its mapset in a new
directory (database). The region was set as 0-10000 (W-E) and 0-10000 (S-N)
when I did the creation. But after a map was imported (.jpg file, downloaded
from website), this imported map's region was -915-0 (W-E) and -587-0 (S-N), in
the -/- area (the third quadrant of Cartesian coordinate system?). I tried
serveral times with similar downloaded maps, the imported maps always falled in
this area. How to sovle this problem? How to let the map "sit" in a region as I
want? Thanks for help.
Lizhong Jin