This was the frustration that I experienced for the past 6 weeks.
My 2010 15″ MacBook Pro experienced issues with the sudden black screen. You can read more about it here. I had no issues when the MBP was running Snow Leopard, but when I upgraded to Lion, the screen would suddenly go black when switching to the NVidia discrete graphics.
I called AppleCare and they said they would replace it under a warranty extension (even though the machine was out of warranty with no AppleCare).
After the first logic board change, the problem persisted.
After the second logic board change, the problem persisted.
At the third repair, they changed the display. Only problem was they change my HD resolution screen to a Standard definition screen.
I called AppleCare to voice my frustration and to my delight they agreed to replace my 2010 MacBook Pro with a 2012 MacBook Pro.
I arrived on Friday.
Great job Apple!
Update: Apparently I’m not the only one experiencing graphics card issues with the 2010 Macbook Pro. Read a similar story here.