Menu button sticks in a "depressed" state

[husker]

Script Title: Solid Block Menu

Script URL (on DD): http://www.dynamicdrive.com/style/cs...id-block-menu/

Describe problem: The second button from the left always stays "depressed" or in the opposing color scheme even when you're not hovering. The other "buttons" work as they should.

The website in question: http://itsallhere.typepad.com/blog

I'm out of ideas. I'd appreciate any help.