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=blue]
> 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=green]
> > On Mar 24, 11:45 am, TRSCGA <TRS...@discussions.microsoft.com> wrote:[/color]
>[color=green][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]
>[color=green][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]
>[color=green][color=darkred]
> > > > Thanks for your help,
> > > > Max[/color][/color]
>[color=green][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]
>[color=green][color=darkred]
> > > Does anybody know of a solutions yet?
> > > -TRSCGA[/color][/color]
>[color=green]
> > Having the same problem here -- worked great before SP1. No settings
> > changed. Anyone have any ideas?[/color][/color]