CDs, DVDs, disk images won't appear in Sidebar or on Desktop
Brand new iMac 2.16, right out of the box.
CDs, DVDs, and Disk Images won't appear on the desktop or in the Sidebar. Nothing is shown over the horizontal gray line at the top of the sidebar, no Macintosh HD, Servers, etc. Disk Images are fully functional, ie Disk Utility recognizes and mounts them just fine.
I checked Mac Help and followed its instructions:
(1) In Finder preferences:Pane:General, all 'Show These Items on the Desktop' boxes are checked.
(2) In Finder preferences:Pane:Sidebar, I checked all boxes under "Show These Items in the Sidebar. BUT these changes are NOT retained. After I close the Preferences, the Sidebar does not change. If I re-open the Sidebar preferences, the relevant boxes are now unchecked, as if I'd never done a thing.
Restarting was the only way to fix the problem. Thereafter, the upper items in the Sidebar (Macintosh HD, external drives, iPod, CDs) sometimes SPONTANEOUSLY disappear. They still show up on the desktop, but tweaking the Sidebar preferences is again ineffective. Restarting is the only solution.
Thank you for your help,
Andy
iMac Intel 2.16, Mac OS X (10.4.7)