My tiny wire that runs out of the power brick to the magsafe connector was kinked really close to the brick. One day, I smell something funny, look down and see the plastic starting to melt and expose the wiring. So I take it to the Apple Store at Legacy Village (45 minutes away from where I live), and the guy tells me it's my fault it got kinked! I tell the guy this is why I bought Apple Care because this is an issue that has happened with other people and wasn't going to take my chances. He said it was still part my fault for not taking care of it. So I said, you're telling me you won't replace it, I go home and use it, it burns my house down, then we have a bigger problem. He checked with the manager and walked out with a new one. Side note - I've been to this store 3 times with technical issues and each time they refuse to cooperate. Was on vacation in Boston a couple years ago. My in warranty iPod died. Took it in, and replaced it, no questions asked, just verified it was in warranty.
Now for my technical problem...
When my display has been off for a long period of time (especially in cool weather) and I move the mouse, the display makes this strange sound. After a few minutes it goes away. The sound changes if I change the intensity of the backlight.