Hello all, Im using Xubuntu 6.10 and I have jEdit 4.2 installed. I downloaded the ProjectViewer plugin from the plugin manager and whenever I try to use it, it always come up with this beanshell error. java.lang.LinkageError: loader constraints violated when linking org/xml/sax/DTDHandler class at projectviewer.PVActions.newXMLReader(PVActions.java:429) at projectviewer.ProjectManager.loadConfig(ProjectManager.java:172) at projectviewer.ProjectManager.(ProjectManager.java:118) at projectviewer.ProjectManager.(ProjectManager.java:90) at projectviewer.PVMenuProvider.(PVMenuProvider.java:57) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:274) at bsh.Reflect.constructObject(Reflect.java:668) at bsh.BSHAllocationExpression.constructObject(BSHAllocationExpression.java:123) at bsh.BSHAllocationExpression.objectAllocation(BSHAllocationExpression.java:114) at bsh.BSHAllocationExpression.eval(BSHAllocationExpression.java:62) at bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:102) at bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:47) at bsh.Interpreter.eval(Interpreter.java:641) at bsh.Interpreter.eval(Interpreter.java:731) at bsh.Interpreter.eval(Interpreter.java:720) at org.gjt.sp.jedit.BeanShell._eval(BeanShell.java:446) at org.gjt.sp.jedit.BeanShell.eval(BeanShell.java:410) at org.gjt.sp.jedit.menu.EnhancedMenu.init(EnhancedMenu.java:114) at org.gjt.sp.jedit.menu.EnhancedMenu.menuSelected(EnhancedMenu.java:99) at javax.swing.JMenu.fireMenuSelected(JMenu.java:1097) at javax.swing.JMenu$MenuChangeListener.stateChanged(JMenu.java:1190) at javax.swing.DefaultButtonModel.fireStateChanged(DefaultButtonModel.java:362) at javax.swing.DefaultButtonModel.setSelected(DefaultButtonModel.java:228) at javax.swing.JMenu.setSelected(JMenu.java:286) at javax.swing.JMenu.menuSelectionChanged(JMenu.java:1257) at javax.swing.MenuSelectionManager.setSelectedPath(MenuSelectionManager.java:83) at javax.swing.plaf.basic.BasicMenuUI$MouseInputHandler.mouseEntered(BasicMenuUI.java:388) at java.awt.Component.processMouseEvent(Component.java:5109) at java.awt.Component.processEvent(Component.java:4897) at java.awt.Container.processEvent(Container.java:1569) at java.awt.Component.dispatchEventImpl(Component.java:3615) at java.awt.Container.dispatchEventImpl(Container.java:1627) at java.awt.Component.dispatchEvent(Component.java:3477) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3483) at java.awt.LightweightDispatcher.trackMouseEnterExit(Container.java:3323) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3180) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3128) at java.awt.Container.dispatchEventImpl(Container.java:1613) at java.awt.Window.dispatchEventImpl(Window.java:1606) at java.awt.Component.dispatchEvent(Component.java:3477) at java.awt.EventQueue.dispatchEvent(EventQueue.java:456) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137) at java.awt.EventDispatchThread.run(EventDispatchThread.java:100) I have also never had this problem before, and it always seems to happen on linux. Windows works fine. Please help.