So I'm using this Group Policy Management console and I've created a GPO
for this OU. There are options to enforce the GPO as well as to link
enable it. What the heck do those options mean? I just want to be able
to enable or disable this GPO.

And before anyone says anything about eDir, I just want to say that AD
seems to be absolutely horrible. Something that's an easy task with eDir
(such as configuring login scripts) is a royal pain in the kiester with
AD. But... it wouldn't hurt for me to get at least a little exposure to
the other side. If for nothing else just so that I can see just how truly
bad the other side is.

"Those of you who think you know everything are annoying to those of us who do."