Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_5 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8L1 Safari/6533.18.5) Today I called Apple over a graphical issue with World of Warcraft. The tech walked me through a Command+Option+P+R Bootup. It worked but now after a few minutes of playing WoW, my Mac screen shuts off, but the computer still runs. I have to manually power it off. Anyone know what's wrong with it? I can't call Apple until tomorrow.