Shuts Down After One Minute?

I can turn on the Mac and load it all the way to the desktop, but after a minute or so, a pop-up of "Logout, Cancel, Restart, Shutdown" will occur. Even though nothing is pressing against the keyboard, it will turn itself off after a minute. I know this isn't a hardware problem because I am not experiencing random shutdown in XP, so it's solely within the Mac OS. Suggestions? Thanks!

Kevin,
This usually happens when your headphones/earbuds aren't plugged all the way in. Double check the connection of the headphones and make sure the jack is free of debris.
B-rock

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This usually happens when your headphones/earbuds aren't plugged all the way in. Double check the connection of the headphones and make sure the jack is free of debris.
B-rock

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Shuts Down After One Minute?

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