I have now tried RB Internal Links twice, several days apart from one another.
I can add the link no problem, but when I hit the SAVE button and the page saves, the Visual editing page goes blank leaving me w/just the html version. If I then remove the link by use of the html edit page, the Visual editing page returns. Then what happens when I click the save button is the WP asks me if I want to navigate away from this page and gives me a "yes/no" or OK option. Very strange.
I am using TinyMCE advanced which I was flabbergasted to find out doesn't have it's own internal link option!
Does anyone know a fix for this? It's the only plugin I've been able to find that gives one the ability to add internal page links. I'd be happy to try another one if there's one available.