Separator not being a darned separator!

["Patrick M. Rutkowski" <rutski89 gmail com>]

Someone please help a GTK+ newbie out, I can't make any sense of this:
http://www.rutski89.com/static/taskbook-sep.jpg

Glade says it's of class GtkSeparatorMenuItem, but it doesn't show up
as such in the actual app.

You can find the source code here:
http://www.rutski89.com/static/taskbook-sep.tar.gz

If you have the requisite tools installed, the following one-liner
will download, build, and run the (broken) project. If you trust me
enough, you can give it a spin to see for yourself:

mkdir taskbook-tmp && cd taskbook-tmp && wget
http://www.rutski89.com/static/taskbook-sep.tar.gz && tar xvzf
taskbook-sep.tar.gz && cd taskbook && sh configure
--prefix=$PWD/../taskbook-install && make install &&
$PWD/../taskbook-install/bin/taskbook