Shadowbane and opengl

When I attempt to run Shadowbane I get a “opengl context” warning. Then a notice that my machine is operating under sys. req.

So far as raw stats my computer is well above the sys. req. 1ghz p4 and geforce 3 (win xp os)

Other than installing new opengl drivers for my chipset (done that) are there any suggestions? Anyone had a similar problem?