Problème Java au démarrage de la consol

Bonjour,

Alors voila, j'ai installé la dernière version de java.. 6 update 5...

mais le problème persiste.. j'ai désinstalé et réinstalé..

et voila le problème lorsque je veux lancé un applet java sous firefox 2.0.0.12 ...

Recharger la configuration du proxy ...
network: Chargement de la configuration du proxy définie par l'utilisateur ...
network: Terminé.
network: Chargement de la configuration du proxy à partir de Netscape Navigator ...
network: Terminé.
java.lang.NullPointerException
at com.sun.deploy.net.proxy.DynamicProxyManager.reset(Unknown Source)
at sun.plugin.util.PluginConsoleController.reloadProxyConfig(Unknown Source)
at com.sun.deploy.util.ConsoleWindow$5.actionPerformed(Unknown Source)
at javax.swing.JComponent$ActionStandin.actionPerformed(Unknown Source)
at javax.swing.SwingUtilities.notifyAction(Unknown Source)
at javax.swing.JComponent.processKeyBinding(Unknown Source)
at javax.swing.KeyboardManager.fireBinding(Unknown Source)
at javax.swing.KeyboardManager.fireKeyboardAction(Unknown Source)
at javax.swing.JComponent.processKeyBindingsForAllComponents(Unknown Source)
at javax.swing.JComponent.processKeyBindings(Unknown Source)
at javax.swing.JComponent.processKeyEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.KeyboardFocusManager.redispatchEvent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(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)
Terminé.

si quelqu'un pourrais m'aidé..

et j'espère avoir posté dans la bonne section, c'est mon premier msg... ..
si tel n'est pas le cas, j'en suis désolé..

encore merci pour ceux qui prendront la peine de me lire et de répondre ;)

Configuration: Windows XP
firefox 2.0.0.12