Hi
I think it’s nothing to do with WP3.8, my demo site is also based on WP3.8,
I was thought that maybe it’s caused by a certain plugin, because when I checked your website with developer tool on chrome, I found the following javascript errors, but they are not from the theme files.
Uncaught TypeError: Cannot read property 'document' of undefined fb1116178576adb23a83c14adeb6bb4bb4a3e8ca.js:1
Failed to load resource http://stats.wordpress.com/e-201301.js
Uncaught ReferenceError: st_go is not defined
So, you can try to disative the plugins one by one until it’s normal, then you will know which plugin caused these errors.
Thanks