MOTUnation.com

I have a main account and a studio account on my computer. Should I repair permission in both account or only in my main administrator account. I've always been messed up with that repair permission thing.

Does anyone have a link to explanation for some infos on what repair permissions are and how they work.

Also is there an updated version of the famous tracking the big cats? It was written when jaguar was up but I guess some stuff have changed since then? I'll be replacing my HD soon and I'm wondering what's the cleanest install I could do.

Some of this might come in handy:

Troubleshooting Permissions
http://docs.info.apple.com/article.html?artnum=106712

How to... and what does it do?
http://kb.iu.edu/data/aoxn.html

Not sure if this quite does what the e-musician article did. There is a pdf

Technical History of Apple's Operating Systems
http://www.osxbook.com/book/bonus/chapter1/

There are some pdf's, but basically these are teaser articles to a book for purchase.