This discussion thread helped me resolve my problem, so this post is my thank you to all of you who have already posted.
One week ago the screen on my 15-inch early 2008 MacBook Pro went black within the hour after I installed the new iTunes. (I don't think that there'a a connection with iTunes, but I'm putting it out there for you all.) I took it in to the Genius Bar of the local Apple Store (Short Pump, Virginia) where they said that they ran a diagnostic (they took my computer into the back for a period of time) and my logic board was broken. I was told that it would cost $310 to fix/replace and my computer had to be sent away for the repairs.
I only found out about the "Distorted video or no video issues" with the MacBooks of my era by checking out the internet after sending my computer off. Here's the link:
http://support.apple.com/kb/ts2377.
When I arrived at the Apple Store yesterday to pick up my fixed MacBook Pro, the salesperson said nothing about the free repair program--he just presented me with my computer and the bill. My entreaties that my computer be considered for the program were parried until I insisted on speaking with the manager. When he eventually spoke with me, he admitted a mistake (although suggested it was on the part of the off-site Apple repair location) and rang up the ticket showing a refund.
The experience left a bad taste in my mouth. I can't be sure whether the failure to tell me about the free repair was merely an oversight, Apple policy, or store laziness. In any case, I have learned to be a bit less trusting with what I am told at the Genius Bar.