I had to reinstall OSX and reset my preferences from scratch. Now all my PDFs automatically open in Apple's Preview. I prefer they open in Acrobat. Is there a preference I can set? Could you point me to it? Another issue: When I click on Desktop & Screen Saver in the System Preferences it immediately quits. This doesn't happen with anything else. I've verified and repaired permissions. Is there something I'm missing? A .plist I need to trash? Thanks. Sherry, Currently running 10.3 (updating to 10.3.5 as I post) on a G5.