posted 9 years ago
This happened to my 17" as well a year or so back. I eventually brought it to the Apple Store and it got fixed under a "first-time out of warranty" program for some ridiculously small sum considering they replaced the logic board, the display, and the battery.
But, I needed a new system anyways for my previous contract so I purchased the top-of-the-line MacBook Pro retina. I'd recommend getting the SSD and getting it maxed out with memory. Not cheap, but those two items made a world of difference.