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Invalid lock sequence error in OpenSceneGraph application

I have an application that is built on OpenSceneGraph (2.6.1) and therefore indirectly OpenGL. The application initializes and starts to run, but then I get the following exception: "Attempt to execute an invalid lock sequence" in OpenGL32.dll. When I re-run it, I sometimes get this exception and sometimes the "privileged statement" exception. The call pillar looks like it's corrupted, so I can't tell exactly where the exception is thrown from. I ran the app several times a couple days ago and have never seen this behavior. Since then I've added an else clause for a pair of ifs and that's it. My app is a console app built with Visual Studio 2008 and sets OpenScenGraph to SingleThreaded.Has anyone seen this before? Any tips for debugging?

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Can you reproduce it using one of the standard examples?
Can you create a minimal application that causes this?
You have a machine with a different video card that you can test (like Nvidia vs. ATI), there are some problems with openscenegraph and bad OpenGL drivers.



Have you tried posting to osg-users@lists.openscenegraph.org

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The problem turned out to be in our application - collecting the wrong version of the OpenGL DLL, not the one installed in System32.



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