Each time I open Illustrator, I have to open preferences and go through changing everything back to the way I like it and it's getting really old. How can I permanently save these settings? I've read this article: (http://help.adobe.com/en_US/illustrator/cs/using/WS714a382cdf7d304e7e0 7d0100196cbc5f-630ca.html) but I think it's for older versions because I couldn't find the Adobe Illustrator Preferences file, and even if I did I wouldn't know what to do with it. I'm on Mac OSX.7. I previously used CS4 and it saved my preferences the first time permanently. Help!
Can you check the permission on the following folder :-
<startup drive>/Users/<username>/Library/Preferences/Adobe Illustrator CS5 Settings/
Make sure you have the read and write permission on the "Adobe Illustrator CS5 Settings" folder with all the enclosed items.
Moving this thread to the Illustrator Forums for better assistance
The folder Manish-Sharma points out does exist on your system I assure you.
You can also run Repair Permissions in Disk Utility which is located in your Utilities folder. That may correct the problem.
It does exist but is now a hidden folder in Lion and beyond. There is a chance that you do not have the proper read/write permissions set.