Im out of luck :’(
I browsed Matrox forum and G400 driver (possible all Gxxx serie) support only OpenGL1.1 and did not find any future releases on that area.
http://forum.matrox.com/mga/viewforum.php?f=43&sid=aab5c73aa6fa8ec08399150367422c8e
My lowbudget is screaming, but I hope SantaClaus see this message.
Is it possible to create anything even simple visible with Xith3D library without having OGLv1.2 driver? Probably cubetest.cmd demo is a simple as can be.
I know, that lwjgl driver (latest AlienFlux works on G400) and simple JOGL demos work. Althought all fullscreen jogls go to a blank screen as well, but thats ok as I prefer windowed mode.
G400 is a deadend card, so I must upgrade it.
EDIT: Found a wild wrapper driver, supports OpenGL1.4 through DirectX interface.
I may give it a try and see whether it gives me OpenGL1.2+ support with current G400 driver.