Invocation of this Java Application

hi who can help me apple G4 mac os 8.6
error :
Invocation of this Java Application has caused an InvocationTargetException. This application will now exit. (LAX)

Stack Trace:
java.lang.NoSuchMethodError: javax.swing.plaf.metal.MetalLookAndFeel: method setCurrentTheme(Ljavax/swing/plaf/metal/MetalTheme;)V not found
at com.limegroup.gnutella.gui.LimeLookAndFeel.<init>( LimeLookAndFeel.java:21)
at
at com.limegroup.gnutella.gui.Initializer.initialize( Initializer.java:52)
at com.limegroup.gnutella.gui.Main.main(Main.java:16)
at com.zerog.lax.LAX.launch(Compiled Code)
at com.zerog.lax.LAX.main([DashoPro-V1.2-120198])
at com.apple.mrj.JManager.JMStaticMethodDispatcher.ru n(JMAWTContextImpl.java)
at java.lang.Thread.run(Thread.java)

i get the same thing now and am trying to solve it... try restarting holding down the apple + option key. this will prompt you to rebuild the desktop, click yes. i'm gonna try a few other things, if i get it to work i'll post

KAM-N

i took out the shared and incomplete folders and uninstalled the damn thing then reinstalled it. so far so good i guess it couldnt find something that was sitting right there. my guess is your probably shut it down improperly the last time, i know i did... i froze and was downloading and had to hard restart.

so uninstall and reinstall and it should work