I tried to run the program "How to: Getting started with JOGL",it can pass the compiling but produce the follow error when i run it.i have put the jogl.jar and jogl.dll under the jre/lib/ext,and the jogl.dll under the jre/bin catalog.

Init GL is net.java.games.jogl.impl.windows.WindowsGLImpl
Exception in thread "Thread-3" net.java.games.jogl.GLException: java.lang.reflect.InvocationTargetException
   at net.java.games.jogl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:233)
   at net.java.games.jogl.GLCanvas.display(GLCanvas.java:80)
   at net.java.games.jogl.Animator$1.run(Animator.java:107)
   at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.reflect.InvocationTargetException
   at java.awt.EventQueue.invokeAndWait(EventQueue.java:851)
   at net.java.games.jogl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:228)
   ... 3 more
Caused by: net.java.games.jogl.GLException: Error swapping buffers
   at net.java.games.jogl.impl.windows.WindowsOnscreenGLContext.swapBuffers(WindowsOnscreenGLContext.java:155)
   at net.java.games.jogl.impl.GLContext.invokeGL(GLContext.java:296)
   at net.java.games.jogl.impl.windows.WindowsOnscreenGLContext.invokeGL(WindowsOnscreenGLContext.java:79)
   at net.java.games.jogl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:267)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
   at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:158)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
Process exited with exit code 0.
who can help me with the error?thanks