Edit: This is not an issue - I had an old version of the plugin installed, and it was not detecting that an update was available until just now.
With no other plugins activated and running Twenty Eleven, this plugin breaks js functionality, at least when editing a post.
Steps to reproduce:
- Deactivate all other plugins
- Switch to Twenty Eleven theme
- Edit or add a post
- Click on the Screen Options link, the Add New Category link, or any other similar link to show hidden content