When I rewipe, the first thing I do is drivers. I have every device installed, and vista ultimate does have native support for FN keys, as my external monitor out works as does the FN key for sleep. This is a fresh install using the same disc I normally would use and prior to this install, screen brightness worked fine out of the box...
If there is a driver, I am in dire need of it, but I can't find it on the HP website. Again, I have a compaq 8710w laptop with Vista Ultimate x64
Asus P5N32-E SLI Mobo || Intel Core 2 Duo E6750 OC'd to 2.93 GHz @ 800 mHz
2 XFX Geforce 9800 GTX w/ 1gig onboard in SLI || 4 Gigs DDR2 Corsair XMS @ 800 mHz
4x Seagate Barracuda 7200 SATA 3 16m buffer || Antec 900 Case || 780W Corsair PSU
LG Flatron 26" LCD W2600H [1920x1200] || Logitech z-5500 Digital 505 watt surroundsound || Logitech G15 Gaming keyboard
Compaq 8710w Laptop [1920x1200 res] || 500g SATA drive, 4 Gigs Corsair XMS Memory || nVidia QuadroFX 1700m 512 onboard