Here’s a great (and brief) article from MacWorld’s Christopher Breen covering what to do when your permissions issues go beyond what your Mac’s built-in Disk Utility software will repair.   While rare, this issue is one I’ve seen before, often when someone is moving from an older version of OSX (like 10.2 Jaguar or 10.3 Panther) to Leopard or Snow Leopard.

This issue is also likely to rear its ugly head when installing a fresh instance of OSX, and creating a new user profile with a different short name than your old one.  Whoops.

[MacWorld] Reader Paul Moortgat’s Mac appears to be unhappy with a new hard drive. He writes:

I replaced the 500GB internal with a 1TB drive in my Mac Pro. I used SuperDuper to copy the disk. Now each time I create a file or a folder on the Desktop and place it on the hard drive icon or trash an item, I’m asked to enter my password. I reset the PRAM and repaired permissions to no avail. How can I get rid of that authentication dialog box?

This is indeed a permissions issue, but it can’t be treated with Disk Utility. And the reason it can’t is because Disk Utility’s Repair Permissions feature repairs permissions only for files installed by OS X, Software Update, or an Apple software installer. It won’t touch your documents, the stuff in your Home folder, or third-party applications.

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