Hello does anyone know where i can get the graphic driver for my Sony Vaio VGN-FZ240E Model for windows XP?

Sony Vaio VGN-FZ240E Originally comes with windows vista home premium and i currently downgraded to windows xp and i need the graphic driver for my Sony Vaio…I tried a program named driver scanner and it scanned for my missing drivers and found that the graphic driver is missing and driver scanner automatically installed the required setup for the graphic driver but occasionally when i start a game the game doesn’t open and when it exits the resolution becomes bigger in everything such as text and in programs and the colors change to negative colors…so if anyone knows anything about this problem or where do i get the suitable graphic driver…it would be great thanks in advance!