What happens when you try to execute your band.exe?What is the error message? Two frequent error:-if you try:> f77 -o band.exe *.fthen> band.exethe file may not be found.try> ./band.exe On some system your compiler is not compatible with the defaultsruntime libs. (it is the cas with my redhat fc4 :-( )Then you migh which to do:> f77 -static -o band.exe *.f> ./band.exe --Pierre-Matthieu Anglade