Image Not Showing Up Right

Yeah, I'm still working on my website.

Here's the page: http://www.noenemies.com/v2/test.html

Here's my css: http://www.noenemies.com/v2/main.css

Here's the background image:

For some reason, the background image shows up, but as a totally different image. I'm not really sure why this happens, and I was hoping if someone could help me with it.

Thanks for any help. This is weird...

  background-image: url('img/columns.png');