So, how come my gfx card can handle CS shaders...

So, my graphics card can handle the crystal space shaders just fine (normal, spec maps, etc) but can’t handle any of them in blender. I don’t know why this is. If anyone knows why this is, please help me out. Thanks
EDIT - and I have an Intel® 82915G/GV/910GL Express Chipset


Crystal space shaders are different from GLSL shaders (currently, blender uses GLSL for all it’s shaders).

Unlike other shaders, GLSL only works on medium to high end graphics cards.