I have a emac thats about 4 years old, always has run well and done everything good. Recently retired it to backup computer and did a total erase and instal of the os.. ran great till a few weeks ago when it froze after about 10 minutes of use. Tried it again the next day and got the same thing. I waited a week and then tried it and still...same thing. Unpluged it, hit the power button and waited a day... same thing. Unpluged everying except keyboard and mouse... same thing. Totaly puzzled on how to fix it, anyone have any ideas.