Intel 915 G Chipsets supprt DirectX 9b in hardware that means Pixel Shaders 2.0 in Hardware, but vertex shader or Hardware transform & lightning is calculated by the CPU in the software as it can be emulated in software
in other words, 915 doesn't support hardware T&L, although games will work, but if there is a game which checks for a T&L compatible card, then it won't work, one examples is Bloodryane