I have a Aluminium PowerBook G4 (12"), and the display went out. I tried the shim, didn't work. Then I had the brilliant idea to hook it up to my TV using the Mini DVI adapters that came with it (I got all types). So, I hopped on my Mac Pro tower, hooked into the laptop using Leopard Screen Sharing, plugged an adapter and a VGA flat panel to test it... and nothing. I can't get the extra display to come up in the system preferences. Under System Profiler, under Graphics/Display, it says "No information found". Is there a driver I need to install to get this to work? Attached are two screenshots of the display prefs.