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Hello!
I got a Sony Vaio VGN-NR21S which i recently reinstalled Vista on.
But now i can't use my fn buttons when it comes to adjust brightness and to select external display. Please help me 😃
Hi Artic1337 and welcome.
Have you reinstalled the original Sony OEM operating system?

I believe it's the Sony-specific VAIO Event Service, which ships as part of the Sony drivers packages, that enables the VAIO's Hotkeys to work. Did you reinstall the VAIO drivers when you reinstalled Vista?
/DMc, London
no because i lost the recovery cd i installed with another original Vista cd. But i've installed all drivers from the sony homepage.
Yes i've installed all drivers that are available at sony home page