Windows XP Spark Startup Problem

I have a Sony VAIO notebook running Windows XP Professional, SP2. Running Spark generates the following error log. I’'ve tried updating the JRE and copying over the bin and lib folders without any luck. Any ideas?

Exception in thread “AWT-EventQueue-0” java.lang.NullPointerException

at javax.swing.MultiUIDefaults.getUIError(Unknown Source)

at javax.swing.UIDefaults.getUI(Unknown Source)

at javax.swing.UIManager.getUI(Unknown Source)

at javax.swing.JPanel.updateUI(Unknown Source)

at javax.swing.JPanel.(Spark.java:41)

at com.jivesoftware.Spark$1.run(Spark.java:123)

at java.awt.event.InvocationEvent.dispatch(Unknown Source)

at java.awt.EventQueue.dispatchEvent(Unknown Source)

at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)

at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

at java.awt.EventDispatchThread.run(Unknown Source)

What other software are you running at start-up?

Booting Windows in Safe Mode with Networking may help to determine if there is another application conflict, perhaps…?

Already tried that. No joy. Same error.