There are problems with opengl on 64bit Ubuntu 12.04  and Fedora 17.

Ubuntu case (Linux 3.2.0-25-generic #40-Ubuntu SMP x86_64 GNU/Linux):

   JVERSION
Engine: j701/2011-01-10/11:25
Library: 7.01.070
Platform: Linux 64
Installer: j701a_linux64.sh

When running "Lab: OpenGL Introduction" in jgtk, after:

   testdlls''
OpenGL OK.

the next triangle example produces an empty window and:

   nextijs'ogl_simple'
   gl3lab''
cannot alloc opengl context

Is this a known bug?  Is there some workaround?

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