diff --git a/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/client/application/detailviewers/WellContentDialog.java b/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/client/application/detailviewers/WellContentDialog.java
index 7d32c5815bb897151dff01563a2f05c0a6d468a9..b8121830c65141b4e96036d5eaeadd3d51e3b8e1 100644
--- a/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/client/application/detailviewers/WellContentDialog.java
+++ b/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/client/application/detailviewers/WellContentDialog.java
@@ -104,7 +104,8 @@ public class WellContentDialog extends Dialog
             DatasetImagesReference imageDatasetOrNull, DefaultChannelState channelState,
             final IViewContext<IScreeningClientServiceAsync> viewContext)
     {
-        final WellContentDialog contentDialog = createContentDialog(wellData, viewContext);
+        final WellContentDialog contentDialog =
+                createContentDialog(wellData, viewContext, imageDatasetOrNull != null);
         showContentDialog(contentDialog, imageDatasetOrNull, channelState, viewContext);
     }
 
@@ -122,7 +123,7 @@ public class WellContentDialog extends Dialog
     }
 
     private static WellContentDialog createContentDialog(final WellData wellData,
-            final IViewContext<IScreeningClientServiceAsync> viewContext)
+            final IViewContext<IScreeningClientServiceAsync> viewContext, boolean hasDataSet)
     {
         WellLocation wellLocation = wellData.getWellLocation();
         WellMetadata wellMetadata = wellData.tryGetMetadata();
@@ -133,7 +134,7 @@ public class WellContentDialog extends Dialog
             wellOrNull = wellMetadata.getWellSample();
             wellPropertiesOrNull = wellMetadata.getWellSample().getProperties();
         }
-        return new WellContentDialog(wellOrNull, wellPropertiesOrNull, wellLocation,
+        return new WellContentDialog(wellOrNull, wellPropertiesOrNull, wellLocation, hasDataSet,
                 getExperiment(wellData), viewContext);
     }
 
@@ -177,7 +178,7 @@ public class WellContentDialog extends Dialog
                 {
                     public void handleEvent(BaseEvent be)
                     {
-                        showContentDialog(viewContext, wellContent, imageDataset);
+                        showContentDialog(viewContext, wellContent, imageDataset, false);
                     }
                 });
         }
@@ -186,10 +187,10 @@ public class WellContentDialog extends Dialog
     }
 
     private static void showContentDialog(IViewContext<IScreeningClientServiceAsync> viewContext,
-            WellContent wellContent, DatasetImagesReference imageDatasetOrNull)
+            WellContent wellContent, DatasetImagesReference imageDatasetOrNull, boolean hasDataSet)
     {
         WellContentDialog contentDialog =
-                new WellContentDialog(wellContent.getWell(), null, wellContent.tryGetLocation(),
+                new WellContentDialog(wellContent.getWell(), null, wellContent.tryGetLocation(), hasDataSet,
                         getExperiment(wellContent.getExperiment()), viewContext);
 
         // NOTE: channel chooser state will be not reused among different dialogs
@@ -369,6 +370,7 @@ public class WellContentDialog extends Dialog
 
     private WellContentDialog(IEntityInformationHolderWithPermId wellOrNull,
             List<IEntityProperty> wellPropertiesOrNull, final WellLocation wellLocationOrNull,
+            boolean hasDataSet,
             final SingleExperimentSearchCriteria experimentCriteria,
             final IViewContext<IScreeningClientServiceAsync> viewContext)
     {
@@ -405,7 +407,7 @@ public class WellContentDialog extends Dialog
                     center();
                 }
             });
-        if (wellLocationOrNull != null
+        if (wellLocationOrNull != null && hasDataSet
                 && "true".equals(viewContext.getPropertyOrNull("image-viewer-enabled")))
         {
             addImageViewerLaunchButton();
diff --git a/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/client/application/detailviewers/heatmaps/PlateLayouter.java b/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/client/application/detailviewers/heatmaps/PlateLayouter.java
index b0fe1ede874b08d94a0196a0fdbabb51bc7800fd..02c58353a97c5da34cd78a9075e6827e7eeb6154 100644
--- a/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/client/application/detailviewers/heatmaps/PlateLayouter.java
+++ b/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/client/application/detailviewers/heatmaps/PlateLayouter.java
@@ -295,14 +295,21 @@ public class PlateLayouter
                 public void handleEvent(BaseEvent ce)
                 {
                     IScreeningClientServiceAsync service = screeningViewContext.getService();
-                    // Reload meta data because they might be out dated especially when
-                    // image transformer factory has changed. For the image URL the
-                    // signature of the factory is needed to distinguish them. This is important
-                    // because Web browser cache images.
-                    service.getPlateContentForDataset(new TechId(model.tryGetImageDataset()
-                            .getDatasetId()), new AbstractAsyncCallback<PlateImages>(
-                            screeningViewContext)
-                        {
+                    DatasetImagesReference dataset = model.tryGetImageDataset();
+                    if (dataset == null)
+                    {
+                        WellContentDialog.showContentDialog(wellData, null, channelState,
+                                screeningViewContext);
+                    } else
+                    {
+                        // Reload meta data because they might be out dated especially when
+                        // image transformer factory has changed. For the image URL the
+                        // signature of the factory is needed to distinguish them. This is important
+                        // because Web browser cache images.
+                        service.getPlateContentForDataset(new TechId(dataset
+                                .getDatasetId()), new AbstractAsyncCallback<PlateImages>(
+                                        screeningViewContext)
+                                        {
                             @Override
                             protected void process(PlateImages plateContent)
                             {
@@ -310,7 +317,8 @@ public class PlateLayouter
                                 WellContentDialog.showContentDialog(wellData, ds, channelState,
                                         screeningViewContext);
                             }
-                        });
+                                        });
+                    }
                 }
             });
         widget.sinkEvents(Events.OnMouseDown.getEventCode());