So I decided to install Perian today on my SL 10.6.2. I ran it and it created an icon in the Pref Pane, but when I clicked on the icon and then hit the Install button, nothing happened. I tried it several times and even restarted my MBP, but still nothing. I then tried opening Console to see what happens when I hit the Install button in Perian, and I saw several msgs saying Permission Denied. What the heck is this? I've already experienced some permissions issues lately when I tried to copy mp3s onto my USB key, so I ran the OnyX maintenance just yesterday - but to no avail. I still can't copy most of my mp3s onto USB. And I don't really see a reason why I should repair permissions ONCE AGAIN today just because of Perian?? What's going on? I really don't get this Mac OS permissions crap. I am the only user on this computer and am therefore an Admin, so what is all the fuss about permissions?? How can I fix this mess?