Contribution d'origine par : John R ,
I'm having a sleep issue myself on my late 2008 Mac Pro. It just goes to sleep suddenly and I'm not able to wake it again. I have to force shut down and restart it again. But after a short while it just decides to go to sleep. I'm running the latest version of Mountain Lion 10.8.1 I ran the maintenance software Cocktail on it, but it hasn't helped my Mac Pro.