04-15-2010, 02:25 PM
We have two 12" G4 Powerbooks with 10.4. We have never had the preferences problem you wrote about. I believe that version is optimal for PPC Macs. At 10.5 you get into the version that is more into the 'PPC to Intel transition' and not optimal for your G4. Also, if you ever want to run OS9, you can with 10.4 in Classic but not with 10.5.