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i removed the Windows vista from Sony Vaio VGN-CR220E and put windows XP... and i lost many features, like the motion eye camera, but then i found a website with the specific driver to make it work, but i could not find a driver to make the brightness get lower, it is to the maximum now since i removed it, it's very bothering. does anyone know the exact thing to do to fix this? please don't just give a hint, because i tried a lot, if you know what i am talking about and know the answer, reply to me, thank you. i would be so grateful if we reach a solution.

P.S: when i had windows vista, the brightness would be reduces in the Power Management .. like so save battery the screen would go down.. and there's also Fn-F5 but i didn't try it before, to know if it worked