diff -Naur chart2.31m11/chart2/source/model/main/ImplChartModel.cxx chart2.fix/chart2/source/model/main/ImplChartModel.cxx
--- chart2.31m11/chart2/source/model/main/ImplChartModel.cxx	2009-02-19 00:07:12.000000000 +0800
+++ chart2.fix/chart2/source/model/main/ImplChartModel.cxx	2010-08-11 11:31:35.593750000 +0800
@@ -135,6 +135,7 @@
 
     GetStyleFamilies();
     CreateDefaultChartTypeTemplate();
+    pNumFormatter = NULL;  // memory leak
 }
 
 ImplChartModel::ImplChartModel( const ImplChartModel & rOther, const Reference< util::XModifyListener > & xListener ) :
@@ -160,6 +161,8 @@
     m_xXMLNamespaceMap.set( CreateRefClone< Reference< container::XNameAccess > >()( rOther.m_xXMLNamespaceMap ));
 
     CloneRefVector< Reference< chart2::XDiagram > >( rOther.m_aDiagrams, m_aDiagrams );
+
+    pNumFormatter = NULL;  // memory leak
 }
 
 ImplChartModel::~ImplChartModel()
@@ -454,6 +457,11 @@
     // note: m_xModifyListener is the ChartModel, so don't call dispose()
     m_xModifyListener.clear();
 
+    if ( pNumFormatter ) {      // memory leak
+       delete pNumFormatter;
+       pNumFormatter = NULL;
+    }
+
     m_bIsDisposed = true;
 }
 
@@ -577,7 +585,8 @@
         if( !m_xOwnNumberFormatsSupplier.is() )
         {
             Reference< lang::XMultiServiceFactory > xFactory( m_xContext->getServiceManager(), uno::UNO_QUERY );
-            m_xOwnNumberFormatsSupplier = new SvNumberFormatsSupplierObj( new SvNumberFormatter( xFactory, LANGUAGE_SYSTEM ) );
+            pNumFormatter = new SvNumberFormatter( xFactory, LANGUAGE_SYSTEM ); // memory leak
+            m_xOwnNumberFormatsSupplier = new SvNumberFormatsSupplierObj( pNumFormatter/*new SvNumberFormatter( xFactory, LANGUAGE_SYSTEM )*/ );
             //pOwnNumberFormatter->ChangeStandardPrec( 15 ); todo?
         }
         m_xNumberFormatsSupplier = m_xOwnNumberFormatsSupplier;
diff -Naur chart2.31m11/chart2/source/model/main/ImplChartModel.hxx chart2.fix/chart2/source/model/main/ImplChartModel.hxx
--- chart2.31m11/chart2/source/model/main/ImplChartModel.hxx	2008-10-01 16:35:04.000000000 +0800
+++ chart2.fix/chart2/source/model/main/ImplChartModel.hxx	2010-08-11 11:32:04.484375000 +0800
@@ -244,6 +244,8 @@
     ::com::sun::star::uno::Reference< ::com::sun::star::container::XNameAccess>     m_xXMLNamespaceMap;
 
     ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener >     m_xModifyListener;
+
+    SvNumberFormatter * pNumFormatter;  // memory leak
 };
 
 }  // namespace impl