For me I found a permissions problem. Once I fixed it the permissions I no longer get the error... For starters close MAIL, it shouldn't be running when you do this. No harm will come if you don't, but just to be sure I suggest closing everything down.
1) Open Finder
2) /home_dir/Library/
3) Highlight the Mail and Mail Download folders
4) Right mouse click and select "Get Info"
5)... read below
I noticed in the Mail downloads folder I had the following accounts assigned under "Sharing & Permissions". Take notice to the user accounts listed... Note MY SID of jnorris is not there! I have:
_unknown : Read & Write
staff : Read Only,
everyone : Read Only
I removed the _unknown and added my SID: jnorris and applied the Read & Write permissions.
You may have to add just your user account if it's missing, but you'll also have to apply the permissions and "make user account the owner". Also apply all changes to enclosed items. If your users account is there I suggest changing the everyone permissions to "NO ACCESS", and apply those changes to the enclosed items.
I hope this helps some, it did me and I'm not able to save my images and documents. Yippie!
-Jay
Message was edited by: JayNorris
Message was edited by: JayNorris