I don't know if any of the reliability updates help, sometimes that can be a
driver.
Check for current/updated Vista drivers for Video and sound cards.
--
A Professional Amateur...If anyone knew it all, none of would be here!
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"Don Bouchard" <> wrote in message
news:...
> Whenever my computer goes to sleep for more than 2 hours with Vista, it
> won't revive. I have to shut down the computer by pressing the On-Off
> swittch until the computer turns off, and then reboots. How do I get my
> computer to revive from its coma without shutting down and rebooting?
> Thanks.