diff --git a/EXE_GeoInters.cpp b/EXE_GeoInters.cpp
index f8bc39b..c3f7ce6 100644
--- a/EXE_GeoInters.cpp
+++ b/EXE_GeoInters.cpp
@@ -437,7 +437,7 @@ MySurfTmSurfTmInters( int nId1, int nId2, int nDestGrpId,
    for ( size_t i = 0 ; i < vPnt.size() ; ++ i) {
      // creo il punto
       PtrOwner<IGeoPoint3d> pGeoPnt( CreateGeoPoint3d()) ;
-      if ( ! IsNull( pGeoPnt))
+      if ( IsNull( pGeoPnt))
          return GDB_ID_NULL ;
      // setto il punto
       pGeoPnt->Set(  vPnt[i]) ;
@@ -482,7 +482,8 @@ MySurfTmSurfTmInters( int nId1, int nId2, int nDestGrpId,
          if ( bInvert)
             pLine->Invert() ;
         // lo accodo alla composita
-         if ( ! pCrvCompo->AddCurve( Release( pLine), true, dToler))
+         if ( ! pCrvCompo->AddCurve( Release( pLine), true, 1.1 * dToler)  &&
+              ! AreSamePointApprox( ptNear, vBpt[nInd].second))
             return GDB_ID_NULL ;
         // aggiorno il prossimo near
          ptNear = vBpt[nInd].second ;
diff --git a/EgtExecutor.rc b/EgtExecutor.rc
index e0e43ec..26f3adf 100644
Binary files a/EgtExecutor.rc and b/EgtExecutor.rc differ