On Feb 20, 2006, at 2:34 PM, Rafe Day wrote: > My 800MHz Titanium G4 suffered the hinge break problem that seems > to plague > these machines. I installed steel replacements for both hinges in > an attempt to forestall a > reoccurrence and also replaced the LCD cable. > > When I restarted the machine, still a blank gray screen -- though > it still > drives an external monitor. > > What is my next step? > > All suggestions are greatly appreciated. :) Try replacing the inverter board which drives the screen signal. It is easy to get to. slides to left to release.