fix blank dialogs: now need to explicitly call show on containers

Change-Id: I803f808e7049777ec5a46dc2fce00a3943321ffa

sfx2/source/dialog/tabdlg.cxx

@@ -592,6 +592,8 @@ void SfxTabDialog::Init_Impl( sal_Bool bFmtFlag, const String* pUserButtonText,
             LINK( this, SfxTabDialog, ActivatePageHdl ) );
     m_pTabCtrl->SetDeactivatePageHdl(
             LINK( this, SfxTabDialog, DeactivatePageHdl ) );
+    m_pActionArea->Show();
+    m_pVBox->Show();
     m_pTabCtrl->Show();
     m_pOKBtn->Show();
     m_pCancelBtn->Show();