Umont ownership?

[jeremy jozwik <jerjoz.forums@gmail.com>]

hello list, after a recent system drive migration ive noticed that the
right click unmont in lenny 5.0.2 no longer cleanly unmounts.

i get a dialog box saying cannot unmont blah blah...  the drives are
not being accessed at the time.
since umount is not a package that i can reinstall [as far as i know]
im wondering if my main user account does not have permissions to run
umont?

im just guessing here so i changed chmod to all users write read whathave you.
that seemed, at first, to fix the problem. but it is back now.

ownership of umount is root now. im wondering if that is the correct setting.