On Sat, May 31, 2008 18:12, H.S.Rai wrote: > On Sat, May 31, 2008 at 8:56 PM, Michael Barton <michael.barton at asu.edu> > wrote: >> >> First, which version of GRASS are you using? > > GRASS6.2.2, which is default in Ubuntu Linux 8.04 (Hardy Heron). You can get 6.3 from here: http://www.les-ejk.cz/ubuntu/ Moritz