On Tue, 05 Jun 2007 20:28:12 GMT, Grinder
<grinder@no.spam.maam.com> wrote:

>Here's a weird one: My uncle reports that when he plugs has laptop into
>AC using his wall adapter, the LCD screen noticeably dims. Any ideas
>what might be causing that?


Typically there is a utility software included (installed
on) the laptop by the OEM that allows the user to change the
power profiles - which various power savings options are
enabled in certain power states like battery vs ac or sleep
mode. You should find the required adjustment there.