if you haven't installed floating point/no-data upgrade yet, you need to get only 2 files: fp_main.tar.Z and fp_alpha.tar.Z Uncompress these files, move fp_,main.tar into src directory issue tar -xvf fp_main.tar command. Do the same for fp_alpha.tar in src.alpha directory. Remove all the .o files and run GISGEN to recompile GRASS. if you have installed the upgrade before, get only the updates you haven't installed yet. Olga (olga@diego.cecer.army.mil)