I just wanted to share my story regarding the logic board repair on my iBook.
Here I was happily surfing the net Monday afternoon and when I went to adjust the angle of the screen it happened, lines across the screen, a few flashes, and then nothing. That's the bad part.
Here's the good part. I called Apple Monday afternoon. The pre-paid shipping box was on my front porch early Tuesday morning. I dropped the package off to be shipped back Tuesday afternoon and my iBook was returned to me, repaired, first thing Thursday morning. Two and a half days total. That's pretty impressive if you ask me.