At 18:29 -0800 11/25/11, Tom wrote:
>For example, I just pulled a TIFF image from Computer A to Computer B.
>I open it on Computer B, make some adjustments to color, and then try
>to Save, and up pops a box that says I can't Save because I "don't
>have the necessary access privileges."

That sounds as though you didn't really  copy the file on the remote disk 
before you opened it with an editor.  It's something like the meaning of 
"pulled". If you copied the file to a local folder it's yours. If you're trying 
to edit it remotely it still belongs to someone else as far as the OS is 
concerned.

When your editor goes to save it on the remote machine you, as the local user, 
must have read and execute access to the remote directory into which the file 
will be stored.

Have you tried a Save-As into a local directory?  Does the directory where the 
file is stored on the remote machine have write access for everyone?  That's 
actually fairly dangerous and is unlikely to be an Apple default.

Apple's GUI access to permissions lacks some capability in that it doesn't make 
it easy to set and unset the execute bit in the UNIX way.  It's whole lot 
easier in Terminal.app where you can perform an ls -l  to see all of the 
permission bits with chmod available to reset them. But yeahhh.  I know. That's 
not the Apple way.

It's also just possible that someone has enabled access control lists.  That's 
popular in machines that are network servers but it's a real PITA in a home 
environment. Is computer A, perhaps, a machine at work and mounted over the 
internet?

-- 
-->A flashlight: is a metal tube used to store dead dry cells. <--

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