I am using WordPress 3.4.1. with GoodLayers GoodSpace Theme and only the Multilingual Text plugin.
I think i installed your plugin correctly and i created the Dropbox-App
and connected it to your plugin. I can see the "Dropbox Images"-Tab in the "Add Media" Dialog, and when i click it, it says "Loading ..." but it never shows anything. The Button below says "Sideload these images", but ofcourse nothing happens because i can't see any checkboxes (as seen in your screenshots).
I hope you can find the problem or help me with this.