Hi, About 10-15mins after starting a WoW session in 10.5.6 on a Mac Pro, the screen goes into powersave mode, and cannot be returned. This is leaving me with no alternative but to hard reboot! I can hear the fans going mad as I'm playing, so wonder if it's a heat issue. If so, what to do about it? Can anyone suggest: a) How to break out of screen power save without hard rebooting? b) What the issue may be and how to investigate/resolve it? Many thanks!