Strange CSS issue with my headline

For some reason the background for the headline of my post is getting cut off when the title goes onto a second 开发者_如何转开发line. Check out:

http://www.widehiverecords.com/calvin-keys-in-featured-in-american-rag/

And compare it to: http://www.widehiverecords.com/perseverance-phil-ranelin-with-henry-franklin-and-big-black/

I've looked at every element and I'm not sure what the problem is. I figured out that if I turn the line height down to 1em for the title, the problem goes away, but that doesn't explain what is causing it.

I'd appreciate any help! Thanks!

The div is getting wide enough that the background is repeating. Just change the rule for .custom .top .headline_area h1, .custom .top .headline_area h2, .custom #archive_intro h1 from

background: url(/wp/images/h1_wood.png)

to

background: url(/wp/images/h1_wood.png) no-repeat

edit

In case this question is stumbled onto in the future after the link has been fixed, here's what it looks like now, with the red circles highlighting the area.