Oh woe is me !! System Preferences crashes immediately when I try to change my screen saver/desktop option. Has anyone else had this problem. I ran disk utility to repair permissions but there was nothing to repair ! I did have my home file encrypted and that wrecked havoc on all my files. iPhoto pictures disappeared. Safari lost all bookmarks including that presaved ones that usually come on the bookmark bar. Doesn't have the imported bookmarks from Internet Explorer. Dock kept reverting to the original, all system preferences reverted to original. I haven't checked all my files yet to see if they are O.K. I even did a clean install!! I feel like Alice in Windows Land. I've never had problems before on a scale like this, Is there a MacSuffer site anywhere with more tales of woe. One must be stoic and Zen like to get through this . Next time I think I'll wait a few weeks before installing a new operating system.