In order to maximize space in the forums, is it possible for me to hide or completely remove the right menu?

I've made some feeble attempts to edit the CSS file, but if you take a look at the site, you'll see that "Nothing Scheduled" still faintly appears at the top of a phantom right menu. Is there a way to remove this completely via the CSS file, and simply rely on a left menu and the body of the site?

For ref, my site is http://www.zgguild.com

Try adding the following to your CSS:

#sidebar-right{
	display:none
}

That should do what you're looking for.

That did the trick, thank you!