to see if Vista itself detects a problem:

Control Panel
System and Maintenance
Performance information and tools
Advanced tools in left pane

Michael

"DaveS" <DaveS@discussions.microsoft.com> wrote in message
news:8C69D95F-6157-4D3C-822F-2D2CE540008C@microsoft.com...
>I just installed Vista on the spare partition of my XP developemnt box
> (Atholon 64 X2 4200 w/ 1GB) The old system was running rock solid. The
> Vista
> system has had a couple of unxpected reboots. The big problem for me is
> that
> a shutdown takes 10 or more minutes and often doesn't complete. Then I
> have
> to powered it down.
>
> Running on all Vista drivers - out of the box. Office 2003, IIS7, SQL
> Express SP1, VWD SP1. No funny stuff.
>
> Are other seeing anthing similar? Any troubleshooting ideas?
>