"I will just add this this does not fit the description of the Nvidia graphics"
Agree. However, if I were you, I would confirm this by taking the MBP to an Apple Store or an AASP. They will run a few diagnostic tests to determine exactly what is wrong. To CYA, make a copy of the Article
http://support.apple.com/kb/TS2377 and bring it w/you to the repair shop.
"My MacBook Pro has gone through two defective batteries and now a total failure. Unfortunately, while *I had AppleCare it expired in June.*"
If you live in the USofA, plead your case w/
Customer Relations - 1-800-767-2275. See what they can do for you.
If you do not live in the US, call the support # in your country & ask *firmly & politely* to be transferred over to the Customer Relations department.
Good luck!
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