Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProject.cs
===================================================================
diff -u -r2950 -r3142
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProject.cs	(.../DamProject.cs)	(revision 2950)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamProject.cs	(.../DamProject.cs)	(revision 3142)
@@ -297,10 +297,20 @@
                         currentProgramVersion = GetMainVersion(currentProgramVersion);
                         if (!currentProgramVersion.Equals(damProjectVersion))
                         {
-                            damProjectData.ClearResults();
+                            if (IsOutDatedFileSupported(damProjectData))
+                            {
+                                damProjectData.ClearResults();
+                            }
+                            else
+                            {
+                                ClearProject();
+                                string message = LocalizationManager.GetTranslatedText(this, "UnsupportedDamProjectFile");
+                                LogManager.Messages.Add(new LogMessage(LogMessageType.Error, DamProjectData, message));
+                            }
                         }
                     }
                 }
+
                 // Project still needs a reference to soilmaterials database; to be resolved later.
                 // This will become obsolete as soon as Delphi DGeoStability version is no longer used.
                 ResolveBackwardCompatibility();
@@ -309,7 +319,8 @@
             });
 
             // Add stability as standard mechanism when not yet available.
-            if ((damProjectData.DamProjectCalculationSpecification.DamCalculationSpecifications.Count == 0) && (damProjectData.DamProjectType != DamProjectType.AssessOld))
+            if (!damProjectData.DamProjectCalculationSpecification.DamCalculationSpecifications.Any() 
+                    && damProjectData.DamProjectType != DamProjectType.AssessOld)
             {
                 damProjectData.DamProjectCalculationSpecification.DamCalculationSpecifications.Add(new DamFailureMechanismeCalculationSpecification());
                 UpdateForOlderProjects();
@@ -338,6 +349,21 @@
             }
         }
 
+        private static bool IsOutDatedFileSupported(DamProjectData projectData)
+        {
+            var calculationSpecifications = projectData.DamProjectCalculationSpecification.DamCalculationSpecifications;
+            foreach (DamFailureMechanismeCalculationSpecification calculationSpecification in calculationSpecifications)
+            {
+                if (calculationSpecification.CalculationModel is MStabModelType &&
+                    calculationSpecification.StabilityModelType != MStabModelType.UpliftVan)
+                {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
         private void ResolveBackwardCompatibility()
         {
             if (DamProjectData.VersionInfo.FileVersionAsRead < DamProjectData.VersionInfo.FileVersion)
Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/Translations.xml
===================================================================
diff -u -r3133 -r3142
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/Translations.xml	(.../Translations.xml)	(revision 3133)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/Translations.xml	(.../Translations.xml)	(revision 3142)
@@ -582,4 +582,5 @@
   <Translation ID="ValidateStiFileUnsupportedSoilVersion" en-US="Soil data in '{0}' is of a version of D-Geo Stability that is not supported and cannot be read." nl-NL="Materiaal data in '{1}'  is van een versie van D-Geo Stability die niet ondersteund wordt en kan niet gelezen worden." />
   <Translation ID="ValidateStiFileUnsupportedGeometryVersion" en-US="Geometry data in '{0}' is of a version of D-Geo Stability that is not supported and cannot be read." nl-NL="Geometrie data in '{0}'  is van een versie van D-Geo Stability die niet ondersteund wordt en kan niet gelezen worden." />
   <Translation ID="ValidateStiFileNotAStiFile" en-US="{0} is not a D-Geo Stability file (*.sti)." nl-NL="{0} is geen D-Geo Stability bestand (*.sti)." />
+  <Translation ID="UnsupportedDamProjectFile" en-US="This project is made in a previous DAM version, chosen options are bit supported in current version." nl-NL="Dit project is met een eerdere DAM versie gemaakt en de gekozen opties worden niet ondersteund in de huidige versie." />
 </Translations>
\ No newline at end of file