Animator within JPanel has problems

OpenGL Development JOGL Development
#1

Hi all,

When I move my GLCanvas from a JFrame to a JPanel (set up with Borderlayout.CENTER) and add an animator to the GLCanvas, I get the following execeptions and no animation. Any ideas as to what the problem is? Is JPanel incompatible with Animator? Thanks.

net.java.games.jogl.GLException: Surface already unlocked
      at net.java.games.jogl.impl.windows.WindowsOnscreenGLContext.unlockSurface(WindowsOnscreenGLContext.java:192)
      at net.java.games.jogl.impl.windows.WindowsOnscreenGLContext.free(WindowsOnscreenGLContext.java:134)
      at net.java.games.jogl.impl.GLContext.invokeGL(GLContext.java:203)
      at net.java.games.jogl.GLCanvas.displayImpl(GLCanvas.java:182)
      at net.java.games.jogl.GLCanvas.display(GLCanvas.java:82)
      at net.java.games.jogl.Animator$1.run(Animator.java:104)
      at java.lang.Thread.run(Unknown Source)