Hi Noriel, > I finally got GRASS working on a Solaris 2.7 box. I 'd like to ask if > GRASS provides support for the GRID data structure from ESRI's ArcInfo? Yes, it should, have a look at r.in.arc r.in.gdal at http://www.geog.uni-hannover.de/grass/gdp/html_grass5/raster.html greets steph