Why does displaydriver not work on my G530 with windows 7 64bit?

Hi,
I installed my Windows 7 64 bit and all driver works except the displaydriver. Does anyone know how to solve the problem? Following messages comes by trying to install the existing driver from Lenovo:
http://img691.imageshack.us/img691/4537/fehlermeldungz.jpg
http://img693.imageshack.us/img693/8244/fehlermeldung2.jpg
http://img716.imageshack.us/img716/5597/systeme.jpg
I don`t know what to do. It`s not possible to change the brightness of my display.
Thank you for helping
Christoph
p.s.: does anyone know how to post pictures directly?

I downloaded the driver here: http://consumersupport.lenovo.com/en/DriversDownloads/drivers_list.aspx?CategoryID=10 There is a 64bit driver and I tryed to install it. Than the popup I already posted came on my screen. I also checked Nvidia and Microsoft Update, but they always say I need special driver for Hotkeys and so on from Lenovo. ahrgh...what can I do?
Thanks for helping me

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