Ok...

I just used my instincts to attempt setting up a Serial Console...

I'm using a Printer cable.

In the Serial Port prefs I checked Serial Console, and the port the wire is
connected to. Then I clicked ok.

On the other end, when I booted a whole buch of garble came...

Whats suppposed to happen? What am I doing wrong? BTW, I'm using ZTerm on
the console.