Hi,
Go into the control panel/programs and features, and click the link on the
left to look at installed updates. See if one of those was a driver update,
as a driver update will frequently cause this problem. You may want to
uninstall this update (rollback to the previous driver) to resolve the
problem.
--
Best of Luck,
Rick Rogers, aka "Nutcase" - Microsoft MVP
http://mvp.support.microsoft.com/
Windows help -
www.rickrogers.org
My thoughts
http://rick-mvp.blogspot.com
"aac1989" <aac1989@discussions.microsoft.com> wrote in message
news:BF5253A3-125D-43FF-B558-B78466BF9E11@microsoft.com...
> Ive had vista for months now and have never had any problems with the
> sleep
> mode.. but after vista recently updated itself I can no longer put it into
> sleep mode. When I expand the power button the "sleep" option is gray and
> un-clickable. Help?