I'm pretty sure the atk drivers are the right ones, i tried installing them from the driver page and from the "Asus Install" utility.
I'm even sure all the hardware is working, nothing seems broken (keyboard backlight flash for some seconds when i boot the notebook).
I don't remember when exactly happened, I suspect it started when i installed drivers for Play station controller, so I tried removing them, whit no result. at the beginning everything worked fine, so I think it's only a software issue.
Thanks for your support and sorry for my poor english, i'm not a native english speaker.