Plugin conflict with new theme

I just got a new theme in. I went through and deactivated all of my plugins to see if any of them could be the problem, and it’s not.

My archive list collapses on other themes, but it won’t collapse on my current one:

http://6birds.net/archive?preview_theme=liz
http://6birds.net/archive?preview_theme=something-fishy
http://6birds.net/archive

http://ww.wp.xz.cn/plugins/clean-archives-reloaded/