diff --git a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/validation/ValidationsTasksPanel.java b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/validation/ValidationsTasksPanel.java
index cfc13af..b378e2b 100644
--- a/src/main/java/org/gcube/portlets/user/td/tablewidget/client/validation/ValidationsTasksPanel.java
+++ b/src/main/java/org/gcube/portlets/user/td/tablewidget/client/validation/ValidationsTasksPanel.java
@@ -73,6 +73,7 @@ public class ValidationsTasksPanel extends FramedPanel {
 	protected TreeStore<BaseDto> store;
 	protected TreeGrid<BaseDto> tree;
 
+	// TODO remove this variable
 	@SuppressWarnings("rawtypes")
 	protected AbstractCell actionButton = new AbstractCell<Boolean>() {
 
@@ -245,6 +246,8 @@ public class ValidationsTasksPanel extends FramedPanel {
 		ValidationCell validationButton = new ValidationCell();
 		validationButton.setTrueIcon(ResourceBundle.INSTANCE.ok());
 		validationButton.setFalseIcon(ResourceBundle.INSTANCE.exit());
+		validationButton.setTrueTitle("Valid");
+		validationButton.setFalseTitle("Solve");
 		validationButton.addSelectHandler(new SelectHandler() {
 
 			@Override
@@ -367,27 +370,30 @@ public class ValidationsTasksPanel extends FramedPanel {
 				Log.debug("ValidationDto: [" + v.getId() + ", "
 						+ v.getDescription() + ", " + v.getValid() + ", "
 						+ v.getInvocation() + "]");
-				if (v.getInvocation() != null) {
-					InvocationS invocationS = v.getInvocation();
-					title = invocationS.toString();
-					Long op = invocationS.getOperationId();
-					if (op.compareTo(OperationsId.ChangeToDimensionColumn
-							.toLong()) == 0) {
-						WidgetRequestEvent widgetRequestEvent = new WidgetRequestEvent(
-								WidgetRequestType.CURATIONBYREPLACEBATCHDIALOG);
-						widgetRequestEvent.setTrId(trId);
-						HashMap<String, Object> map = new HashMap<String, Object>();
-						map.put(Constants.REQUEST_PROPERTIES_REFCOLUMN,
-								invocationS.getRefColumn());
-						map.put(Constants.REQUEST_PROPERTIES_COLUMNID,
-								invocationS.getColumnId());
-						RequestProperties props = new RequestProperties(map);
-						widgetRequestEvent.setRequestProperties(props);
-						eventBus.fireEvent(widgetRequestEvent);
-					} else {
-						UtilsGXT3.info("Invocation Info", title);
+				if (v.getValid()) {
+					
+				} else {
+					if (v.getInvocation() != null) {
+						InvocationS invocationS = v.getInvocation();
+						title = invocationS.toString();
+						Long op = invocationS.getOperationId();
+						if (op.compareTo(OperationsId.ChangeToDimensionColumn
+								.toLong()) == 0) {
+							WidgetRequestEvent widgetRequestEvent = new WidgetRequestEvent(
+									WidgetRequestType.CURATIONBYREPLACEBATCHDIALOG);
+							widgetRequestEvent.setTrId(trId);
+							HashMap<String, Object> map = new HashMap<String, Object>();
+							map.put(Constants.REQUEST_PROPERTIES_REFCOLUMN,
+									invocationS.getRefColumn());
+							map.put(Constants.REQUEST_PROPERTIES_COLUMNID,
+									invocationS.getColumnId());
+							RequestProperties props = new RequestProperties(map);
+							widgetRequestEvent.setRequestProperties(props);
+							eventBus.fireEvent(widgetRequestEvent);
+						} else {
+							UtilsGXT3.info("Invocation Info", title);
+						}
 					}
-
 				}
 
 			}