--- PamVMC_update/HOWTO_VMC_and_PAMELA	2013/10/15 15:51:09	1.1.1.1
+++ PamVMC_update/HOWTO_VMC_and_PAMELA	2014/02/27 08:33:55	1.2
@@ -43,6 +43,8 @@
    cd geant4.9.6.p01-install
    ln -s bin/geant4.sh env.sh
    cd ..
+1a)@source the geant4 environmental variables!
+   source G4/env.sh
 
 2) @ installation of ROOT v. 5.34 @
    @ put root_v5.34.04.source.tar.gz in /cern @
@@ -84,7 +86,7 @@
 
 5) Installation of PAMELA software
 
-   @ Follow the standard instructions for the installation of PAMELA software
+   @ Follow the standard instructions for the installation of PAMELA software and source the enviroment @
    
 
 6) Installation of geant4_vmc