No OpenGL hardware acceleration on Intel 815

Trying to get OpenGL going on a Sony PCG-FX150 laptop with an Intel 82815 integrated graphics controller. OpenGL Extensions Viewer shows my renderer as GDI Generic. I have tried 2 drivers from Sony and the latest from the Intel website with no joy. I really like the look of OpenGL over DirectX in the older games that will play on this thing. Any ideas here?