diff --git a/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/component/WListItemRenderer.java b/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/component/WListItemRenderer.java
index 82c49fdc5d..538f9c4c1e 100644
--- a/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/component/WListItemRenderer.java
+++ b/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/component/WListItemRenderer.java
@@ -294,11 +294,10 @@ public class WListItemRenderer implements ListitemRenderer<Object>, EventListene
 			}
 			else if (field instanceof Timestamp)
 			{
-				SimpleDateFormat dateFormat = DisplayType.getDateFormat(DisplayType.Date, AEnv.getLanguage(Env.getCtx()));
-
-				if (m_tableColumns.get(columnIndex).getAD_Reference_ID()==DisplayType.DateTime) {
-			 		dateFormat = DisplayType.getDateFormat(DisplayType.DateTime, AEnv.getLanguage(Env.getCtx()),"dd/M/yyyy hh:mm");
-				}		
+				int refId = m_tableColumns.get(columnIndex).getAD_Reference_ID();
+				if (refId == 0)
+					refId = DisplayType.Date;
+				SimpleDateFormat dateFormat = DisplayType.getDateFormat(refId, AEnv.getLanguage(Env.getCtx()));
 				listcell.setValue(dateFormat.format((Timestamp)field));
 				if (isCellEditable)
 				{
diff --git a/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/component/WListbox.java b/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/component/WListbox.java
index 7969600657..7d59ed67f7 100644
--- a/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/component/WListbox.java
+++ b/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/component/WListbox.java
@@ -59,7 +59,7 @@ public class WListbox extends Listbox implements IMiniTable, TableValueChangeLis
 	/**
 	 * 
 	 */
-	private static final long serialVersionUID = -706774424788688953L;
+	private static final long serialVersionUID = -5501893389366975849L;
 
 	/**	Logger. */
 	private static CLogger logger = CLogger.getCLogger(WListbox.class);