An empty box extends past the edge of my page into my right menu

http://fun-game-zone.com/odlinks/
There is an empty box outline after the links in the body of the page that the border extends past the edge of my page and into the right menu. I can still click the links there but graphically it doesnt look right. How can I get rid of the box?

http://wordpress.org/extend/plugins/odlinks/