Mac OS X 10.3: PowerBook G4 Behaves Unexpectedly After Changing Display Resolution

  • : April 22, 2008
  • : TA22448
  • : 25677
With Mac OS X Panther, a PowerBook G4 or PowerBook G4 (Gigabit Ethernet) computer may experience issues when the display resolution changes.

Mac OS X 10.3

The computer behaves unexpectedly when you or an application changes the display resolution. Some examples of this behavior include:
  • A slideshow doesn't advance when played in Keynote.
  • The screen turns a solid blue color or the computer stops responding ("crashes") when you turn on full screen Visuals in iTunes or change the resolution in Display preferences.


Download and install Mac OS X 10.3.3 Update or later to avoid this issue.

If you're not ready to install, these tips can help:


This does not affect video on an external display, if one is connected.

If you need a workaround, you can try this: Put the computer to sleep by closing the lid, then wake it from sleep.

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