diff --git a/EgtGeomKernel.rc b/EgtGeomKernel.rc
index 7fcf2b9..ebb7c70 100644
Binary files a/EgtGeomKernel.rc and b/EgtGeomKernel.rc differ
diff --git a/VolZmapVolume.cpp b/VolZmapVolume.cpp
index 224534b..2a5d36c 100644
--- a/VolZmapVolume.cpp
+++ b/VolZmapVolume.cpp
@@ -120,11 +120,11 @@ VolZmap::SubtractIntervals( int nGrid, int nI, int nJ,
 
   // Elimino residui di intervalli inutili
    for ( int i = 0 ; i < int( vDexel.size()) ; ++ i) {
-      if ( abs( vDexel[i].dMax - vDexel[i].dMin) < 2 * EPS_SMALL) {
-         if ( int( abs( vDexel[i].dMax - 0.5 * m_dStep) / m_dStep) == int( abs( vDexel[i].dMin - 0.5 * m_dStep) / m_dStep)) {
-            vDexel.erase( vDexel.begin() + i) ;
-            -- i ;
-         }
+      int nMinN = int( floor( ( vDexel[i].dMax + 2 * EPS_SMALL - 0.5 * m_dStep) / m_dStep)) ;
+      int nMaxN = int( floor( ( vDexel[i].dMin - 2 * EPS_SMALL - 0.5 * m_dStep) / m_dStep)) ;
+      if ( nMinN == nMaxN) {
+         vDexel.erase( vDexel.begin() + i) ;
+         -- i ;
       }
    }