So my sister has a TiBook with a broken screen. It's hanging on by nothing mroe than a wire (literally), and the screen itself does not work. However, the computer is fine, and she has it connected to an external LCD monitor. Unfortunately, the TiBook thinks that there are two monitors, with the broken TiBook's being the primary one. Question: Without being able to see System Preferences, is there a way to switch the computer into a mirrored display mode? No, I do not have an Apple keyboard on which I could hit F7.