Drill down into the advanced settings and make sure you set the conditions
you want to cause sleep.

"Nigel Molesworth" <reply@thegroup.email.invalid> wrote in message
news:71hko315nc66mnlhf6ouacbedt8pr2q7q5@4ax.com...[color=blue]
> On Sun, 13 Jan 2008 11:45:44 -0500, "AlexB" <alexb@comcast.net> wrote:
>[color=green]
>>Control Panel>>System and Maintenance>>Power Options>>Change When the
>>Computer Sleeps (in The left pane). Set up the option of minutes from
>>NEVER.[/color]
>
> It is set to 30 minutes.
>[/color]