Intermittent Power Outages - Black Screen

My screen went black.
I reset my PRAM, which did nothing, and removed the battery and reset my POWER MANAGER, which fixed it temporarily. Long enough for the computer to come back on. But then, it died again. You can hear it go on and off and on and off...dying...off and on...black screen...and then it will come back and then die...and now I am dying... What is going on?
Anyone? Help!

If you still under warranty, visit apple store and let them check it for you.
But before that, I would back up the data there and give it another shot by reset PRAM and PMU, reinstall the OS X and update to the most recent firmware and updater, and repair permission after that. And run hardware test to check logic board and memory aswell.
IF the problem persist, then I think you should contact apple, for maybe something bad with the logic board that need to be replaced.
Good Luck,

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