i installed jedit 4.2 and have the launcher from www.mbisping.de/jedit/launcher.html on xp sp1

i have been able to associate various file extensions to open in jedit by default. i also went through the registry and made sure any reference to jedit now refers to the launcher: "c:\program files\jedit 4.2" -reuseview "%L"

this works well when i open one file. when i open a second file, whether by double clicking the icon or using the context menu, i get the errors pasted below. does anyone know how i can fix this?

[error] EditBus: Exception while sending message on EditBus:
[error] EditBus: java.lang.NoSuchMethodError: org.gjt.sp.jedit.EBMessage.getSource()Lorg/gjt/sp/jedit/EBComponent;
[error] EditBus: at bufferselector.BufferSelector.handleMessage(Unknown Source)
[error] EditBus: at org.gjt.sp.jedit.EditBus.send(EditBus.java:148)
[error] EditBus: at org.gjt.sp.jedit.EditPane.setBuffer(EditPane.java:117)
[error] EditBus: at org.gjt.sp.jedit.View.setBuffer(View.java:967)
[error] EditBus: at org.gjt.sp.jedit.jEdit.openFiles(jEdit.java:1365)
[error] EditBus: at org.gjt.sp.jedit.EditServer.handleClient(EditServer.java:252)
[error] EditBus: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[error] EditBus: at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
[error] EditBus: at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
[error] EditBus: at java.lang.reflect.Method.invoke(Unknown Source)
[error] EditBus: at bsh.Reflect.invokeOnMethod(Reflect.java:149)
[error] EditBus: at bsh.Reflect.invokeStaticMethod(Reflect.java:100)
[error] EditBus: at bsh.Name.invokeMethod(Name.java:872)
[error] EditBus: at bsh.BSHMethodInvocation.eval(BSHMethodInvocation.java:72)
[error] EditBus: at bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:102)
[error] EditBus: at bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:47)
[error] EditBus: at bsh.BSHAssignment.eval(BSHAssignment.java:77)
[error] EditBus: at bsh.Interpreter.eval(Interpreter.java:641)
[error] EditBus: at bsh.Interpreter.eval(Interpreter.java:731)
[error] EditBus: at bsh.Interpreter.eval(Interpreter.java:720)
[error] EditBus: at org.gjt.sp.jedit.BeanShell._eval(BeanShell.java:446)
[error] EditBus: at org.gjt.sp.jedit.BeanShell.eval(BeanShell.java:410)
[error] EditBus: at org.gjt.sp.jedit.EditServer$1.run(EditServer.java:343)
[error] EditBus: at java.awt.event.InvocationEvent.dispatch(Unknown Source)
[error] EditBus: at java.awt.EventQueue.dispatchEvent(Unknown Source)
[error] EditBus: at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
[error] EditBus: at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
[error] EditBus: at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
[error] EditBus: at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
[error] EditBus: at java.awt.EventDispatchThread.run(Unknown Source)