PROBLEM Homepage Nav button not active

[martez]

I have a website set up to show the active page on the menu, or example when you are on home, 'home' is red in the nav bar. The problem is that when I visit the url:orvgraham.com, no menu button is highlighted. It's showing the content from the right page ('coming up sunday,') but the button just isn't glowing. and it works on every page I click but just not showing up by default on my homepage.