Thanks for the reply. These are the drivers I'm running when the games crash - http://www.nvidia.com/object/linux_display_ia32_71.86.11.html - only mine are a slightly older version as mentioned in my first post, and loaded from the PCLOS Package Manager. Both the 'nv' and the '7186' drivers I'm trying to use are the drivers available from the PCLOS PM. I think 7186 supports opengl, certainly glxgears and glxinfo seem to suggest it does.
