[GRASS-user] Raster displaying problem

[Radomir]

Hi all,
I have the number of scanned maps (all are jpeg's with jgw referenced
files). All scans are not prepared by me, and all are scanned as whole
sheet (with legend and all other information). So when I display them in
grass or qgis, the legend of one sheet overlay the part of the next one
sheet (the screen shot is here: http://mort.no-ip.org/screen.png ).
Is there any way to don't display the part of raster file?? Or to cut
off those parts of scanned sheets??
Thanks
-- 
Radomir 

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