This is a function of the driver, not Vista.

The standard way to adjust brightness on a stand alone monitor, use the
control buttons on the front of the monitor.

On a laptop, use the function keys. These keys are usually blue colored and
are enabled by holding down the FN key and pressing the buttons for
brightness.

--

Ronnie Vernon
Microsoft MVP
Windows Shell/User


"Edge30" <edillere********.com> wrote in message
news:%23EVqB6qhHHA.4904@TK2MSFTNGP05.phx.gbl...[color=blue]
> Hello,
> Some Vista systems show in the power options on the left side a slider
> labeled "Adjust the LCD Brightness". But some other systems not.
> Does anybody know the reason why some systems show and others don't?
>
> thanks
> e.
>[/color]