diff --git a/limereport/lrreportengine.cpp b/limereport/lrreportengine.cpp
index e83aadf..b07c607 100644
--- a/limereport/lrreportengine.cpp
+++ b/limereport/lrreportengine.cpp
@@ -155,12 +155,13 @@ QObject *ReportEnginePrivate::elementAt(const QString &, int index)
     return pageAt(index);
 }
 
-PageDesignIntf *ReportEnginePrivate::createPage(const QString &pageName)
+PageDesignIntf *ReportEnginePrivate::createPage(const QString &pageName, bool preview)
 {
     PageDesignIntf* page =new PageDesignIntf();
     page->setObjectName(pageName);
     page->pageItem()->setObjectName("Report"+pageName);
-    page->setReportEditor(this);
+    if (!preview)
+        page->setReportEditor(this);
     page->setReportSettings(&m_reportSettings);
     return page;
 }
@@ -185,7 +186,7 @@ bool ReportEnginePrivate::deletePage(PageDesignIntf *page){
 
 PageDesignIntf *ReportEnginePrivate::createPreviewPage()
 {
-    return createPage();
+    return createPage("preview",true);
 }
 
 int ReportEnginePrivate::elementsCount(const QString &)
diff --git a/limereport/lrreportengine_p.h b/limereport/lrreportengine_p.h
index 69831b7..3210e64 100644
--- a/limereport/lrreportengine_p.h
+++ b/limereport/lrreportengine_p.h
@@ -240,7 +240,7 @@ public slots:
     bool    slotLoadFromFile(const QString& fileName);
     void    cancelRender();
 protected:
-    PageDesignIntf* createPage(const QString& pageName="");
+    PageDesignIntf* createPage(const QString& pageName="", bool preview = false);
 protected slots:
     void    slotDataSourceCollectionLoaded(const QString& collectionName);
 private slots:
diff --git a/limereport/lrscriptenginemanager.cpp b/limereport/lrscriptenginemanager.cpp
index f6197e9..0f3aa1a 100644
--- a/limereport/lrscriptenginemanager.cpp
+++ b/limereport/lrscriptenginemanager.cpp
@@ -336,7 +336,7 @@ QStringList ScriptEngineManager::functionsNames()
 }
 
 void ScriptEngineManager::setDataManager(DataSourceManager *dataManager){
-    if (m_dataManager != dataManager){
+    if (dataManager && m_dataManager != dataManager){
         m_dataManager =  dataManager;
         if (m_dataManager){
             foreach(QString func, m_dataManager->groupFunctionNames()){
diff --git a/limereport/scripteditor/lrscripteditor.cpp b/limereport/scripteditor/lrscripteditor.cpp
index c1a7141..7c9656d 100644
--- a/limereport/scripteditor/lrscripteditor.cpp
+++ b/limereport/scripteditor/lrscripteditor.cpp
@@ -54,14 +54,16 @@ void ScriptEditor::setReportEngine(ReportEnginePrivateInterface* reportEngine)
 {
     m_reportEngine = reportEngine;
     DataSourceManager* dm = m_reportEngine->dataManager();
-    initEditor(dm);
+    if (dm) initEditor(dm);
+    else ui->tabWidget->setVisible(false);
 }
 
 void ScriptEditor::setReportPage(PageDesignIntf* page)
 {
     m_page = page;
     DataSourceManager* dm = page->datasourceManager();
-    initEditor(dm);
+    if (dm) initEditor(dm);
+    else ui->tabWidget->setVisible(false);
 }
 
 void ScriptEditor::setPageBand(BandDesignIntf* band)