Problem

When trying to launch an application within a vncserver Session which needs OpenGL the application crashes.

Possible Workaround

Set the environment variable LIBGL_ALWAYS_INDIRECT to yes:

For tcsh:

setenv LIBGL_ALWAYS_INDIRECT yes

For bash:

export LIBGL_ALWAYS_INDIRECT=yes

What does LIBGL_ALWAYS_INDIRECT do? See: http://unix.stackexchange.com/questions/1437/what-does-libgl-always-indirect-1-actually-do