I have a 900mHz iBook running 10.4.2. Over the last week, whenever I type on the machine, the display flickers. When I remove my hands from the machine's casing, the flickering stops. Sometimes it goes completely black, and the only thing that can really bring it back is a rap on the case (light, but I'm still hitting my ***** machine to make it work, and that sucks). Anyway, this is getting really annoying, and I am definitely not on warranty anymore, but is Apple willing to help with this at all? The machine has run amazingly for years, why all of a sudden is the display dying? AHHHH, it is flickering right now. I am typing this sentence on a black screen. HELP!