[Qgis-user] Polygons imported into grass to clean up do not retain attributes

[Cao Minh Tu]

Hello every body,

I am facing a problem: the overlapping polygons I imported into GRASS 
for cleaning up do not retain their atrributes (every old attributes 
were cleared, in the newly created grass layer, there is only one "cat" 
attribute generated automatically by GRASS). I have done the previous 
action successfully in QGIS before but this time it doesn't work. Any 
idea about how to solve it?
I am using QGIS 1.7.2 on Windows.

Please be patient with me because I am a newbie in GIS.
Thanks for reading and sorry for any mistake in English since I am not a 
native English speaker.