I've got an iBook Clamshell (graphite 466MHz FireWire) with a bad screen and I was able to buy a screen that is supposed to work (it's a LG Phillips LP121X04). I don't actually know what brand the current broken screen is. What else do I need to prepare for this? The old guide I found says you need a specific LG display cable but I'm not even sure if I need that because I don't know what the screen currently in the clamshell is, and even if I do need it I'm not sure I'll be able to get it. Can I get some advice from someone who's actually done this?