I´ve recently installed RB internal links but I couldn´t see anything on the plugin popup. It was blank. Just the arrows at both sides.
I was nuts trying to make this thing work on my current WP setup until I decided to deactivate all my plugins and try one by one wich could be causing the bug. I found out that this plugin: WP-Cycle by Nathan Rice was causing the error. Don´t quite know how, but I had to turn it off in order to have RB Internal links working.
Any suggestions?!!
Thanks for taking the time to read this.
PS: the website of wp-cycle is the following: http://www.nathanrice.net/plugins/wp-cycle/