Ok, so I was having the problem in this thread (http://forums.macrumors.com/showthread.php?t=67237), so I took the advice posted about using the terminal to fix the problem. The advice seemed pretty sound, as it helped the two other people in that thread, and the person providing the advice said the commands weren't to serious if something were to go wrong. Well, it seems that something did go wrong, and at least to me, it seems pretty serious. My initial problem was with the saving of icon arrangement in certain folders (The root folder of my hard drive, and the Applications folder to be exact) and the advice was fixing permissions on .DS_Store using the Terminal. Well after following the advice, I got permission denied messages in the Terminal, and then when I clicked on my desktop, all the icons on it disappeared (the Finder application is still running). It also appears that right clicking has been disabled in most places, among other problems. Oh, now it appears that the tab bar in Safari has vanished, and I can't create new tabs or windows. Here is what I had typed in the Terminal: Last login: Wed Jun 23 20:21:02 on console Welcome to Darwin! Elan-Feldmans-Computer:~ elanfeldman$ ls -ld / .DS_Store -rwxr--r-- 1 elanfeld elanfeld 15364 23 Jun 18:31 .DS_Store drwxrwxr-t 41 root admin 1394 23 Jun 20:20 / Elan-Feldmans-Computer:~ elanfeldman$ groups elanfeldman elanfeldman appserverusr admin appserveradm Elan-Feldmans-Computer:~ elanfeldman$ sudo chown elanfeldman:elanfeldman / .DS_Store Password: Elan-Feldmans-Computer:~ elanfeldman$ sudo chmod 0644 / .DS_Store Elan-Feldmans-Computer:~ elanfeldman$ ls -ld / .DS_Store -bash: /bin/ls: Permission denied In an attempt to run one of the other commands again, I received this: -bash: /usr/bin/sudo: Permission denied Now, my shortname is kind of long (elanfeldman) could that have contributed to the problem? Anyways, I have no idea how to fix this, so help would be greatly appreciated. edit: I tried clicking on the Finder icon in the dock, and it caused the finder to close. Clicking on the icon again does not relaunch the Finder. edit 2: So I ended up trying rebooting after Safari crashed and I couldn't reopen it. Mac OS X loaded to the screen where the status bar appears, and the bar made it all the way to the right (except no text appeared to describe what was being loaded). Once OS X finished loading I get stuck with a screen that has a solid light blue background, and a mouse cursor. Right now I've booted off a backup on an external firewire HD. Double clicking on the Macintosh HD mounted on my desktop tells me I don't have sufficient access privileges to view the HD. Any help?