Go to Advance Power Settings.

Set hard drive to turn off a minute or 2 before sleep.

Set Hybrid and Hibernate modes to "Never/Off"

Under USB settings select "Disable"

Under Multimedia select "Allow ....."

-------
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[url]http://support.microsoft.com/kb/555375[/url]

"Max" <max@virtualmax.com> wrote in message
news:fa328835-099c-417e-b2ce-5576f7cda7b8@u69g2000hse.googlegroups.com...[color=blue]
> Mine is the Intel P35 chipset, though my wife's computer is using an
> nVidia chipset and is having the same symptoms, so probably that's not
> the issue.
>
> =Max=
>
> On Mar 25, 1:33 pm, Max <m...@virtualmax.com> wrote:[color=green]
>> TRSCGA & Joe,
>>
>> What motherboard (or motherboard chipset) are you using? Perhaps this
>> could be related to a specific BIOS or driver incompatibility with
>> SP1?
>>
>> I'll post mine tonight, as I don't recall which chipset I'm using, and
>> I'm at work now, so I can't check.
>>
>> =Max=
>>
>> On Mar 24, 4:41 pm, joe.rybi...******.com wrote:
>>[color=darkred]
>> > On Mar 24, 11:45 am, TRSCGA <TRS...@discussions.microsoft.com> wrote:[/color]
>>[color=darkred]
>> > > "Max" wrote:
>> > > > I have three PCs in my house running Vista. Before installing SP1,
>> > > > all
>> > > > of them would routinely go to sleep automatically, as per the power
>> > > > management settings. Since installing SP1, they continue running
>> > > > without ever going into sleep mode. I can still enter sleep mode
>> > > > manually, which works fine, it's just the automatic sleep that
>> > > > won't
>> > > > work.[/color]
>>[color=darkred]
>> > > > Only software in common across all three machines (other than
>> > > > Vista)
>> > > > is Office 2007 and Windows Live OneCare. Both were installed prior
>> > > > to
>> > > > installing SP1.[/color]
>>[color=darkred]
>> > > > Thanks for your help,
>> > > > Max[/color]
>>[color=darkred]
>> > > Max,
>> > > I have same problem with my Vista machine. Power management was
>> > > working
>> > > fine before SP1. I am also now having the problem with my monitor no
>> > > longer
>> > > going to sleep and sometimes having a problem with the screen saver
>> > > starting.[/color]
>>[color=darkred]
>> > > Does anybody know of a solutions yet?
>> > > -TRSCGA[/color]
>>[color=darkred]
>> > Having the same problem here -- worked great before SP1. No settings
>> > changed. Anyone have any ideas?[/color][/color]
>[/color]