If you will boot from the Leopard install DVD, select your language, then on the second screen on the menu bar go to Utilities > Reset Password. In the Reset Password window select your hard drive then at the bottom of that window where it says "
Reset Home Directory Permissions and ACLs" click on "
Reset". That will reset the ownership and permissions in your user folder to Apple's default settings which IMHO is the best place to start anytime there are ownership and permissions issues. It is all too easy to end up with an unusable or even unbootable system when ownership and permissions get too far astray.
If for any reason you need to change ownership and permissions in a particular directory tree, Finder is notoriously ineffective at drilling down through multiple directory layers even when the "change enclosed.." button is clicked. I have always relied on the donationware utility
BatChmod for that little chore. But it should be used
very judiciously.