Thanks for a really excellent plugin, Joel. I've got it working just great, with one small hitch. In your example of a horizontally aligned navbar with submenus, when one of the main navigation tabs is hovered over, the background of the tab changes, and becomes the only "highlighted" tab. On my menu, the background of the tab does change, but the background of the current pages tab remains constant.
You can see the page here, and notice that the "home" tab background never changes, which it does in your example: http://quarry.dougfelton.com/ Any suggestions would be greatly appreciated! And thanks again for a really nice plugin.