Description of problem:
When you set up probe and see details, there is not shown neither event log nor graph. 
If I click "Download CVS data" I get correct data.

Version-Release number of selected component (if applicable):
spacewalk0.3+gitpatches

How reproducible:
always

Steps to Reproduce:
1. set up probe (e.g. ping to machine)
2. push scout config
3. wait till some data arrive
4. see detail of probe and check both "event log" and "graph"
  
Additional info:
In catalina.out is this Traceback:

2008-12-05 13:04:39,739 [TP-Processor8] ERROR org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/rhn].[action] - Servlet.service() for servlet action threw exception
java.lang.NoSuchMethodError: org.jfree.data.time.TimeSeries.<init>(Ljava/lang/String;Ljava/lang/Class;)V
        at com.redhat.rhn.frontend.graphing.GraphGenerator.createDataset(GraphGenerator.java:156)
        at com.redhat.rhn.frontend.graphing.GraphGenerator.generateJFReeChart(GraphGenerator.java:114)
        at com.redhat.rhn.frontend.action.systems.monitoring.ProbeGraphAction.writeGraph(ProbeGraphAction.java:116)
        at com.redhat.rhn.frontend.action.systems.monitoring.ProbeGraphAction.execute(ProbeGraphAction.java:90)
        at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
        at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:237)
        at com.redhat.rhn.frontend.struts.RhnRequestProcessor.process(RhnRequestProcessor.java:82)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
        at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
....