[sudo-users] Giving access to one app for all users

[Micha]

I had a short look on a neighbours Mac OS X, and
/etc actually is a symlink to the /private/etc/ directory.
This is the path also mentioned in the sudo manpage.
I'm very unfamiliar with this system, and there was very 
little time, i'm sorry i couldn't investigate it thoroughly.
Anyway, i suggest Paul post the complete sudoers file
here, (with all comments) to see the groups and if there 
could be more things involved.

--
Micha