A few days ago, the screen on my macbook pro went out. It was working fine, and I put it in sleep mode and came back to it a few hours later and the screen stayed blank. I restarted it, took out the battery, and every time I turned it on the macbook sounded like it was working fine but the screen stayed blank. I came upon this article (http://support.apple.com/kb/TS2377) and thought maybe it applied to my macbook. I bought my macbook pro in the summer of 08' and checked if i had the NVIDIA graphics processor, which it did. I took my laptop, along with a printed copy of the link above, to a Apple store and the genius didn't look at the paper and ran a test and said my logicboard needed replacing. Is there a way I can test to see if the problem is in fact the graphics processor and the genius was simply ********tin me? Thanks!