The displays of MacBook Pro, MacBook Pro (17-inch), PowerBook G4 (17-inch), PowerBook G4 (17-inch 1.33GHz) and PowerBook G4 (17-inch 1.5GHz) computers open to a maximum angle of approximately 130 degrees.
You can adjust the angle of the built-in display to minimize glare and reflections from overhead lights and windows. Do not force the display if you meet resistance. The displays on these computers are designed to open to a maximum angle of approximately 130 degrees. This is because these computers use a different hinge from other PowerBook G4 models.