I have the same problem. Editing in the Text View is fine, but clicking the Visual tab to show the Visual view shows nothing – it’s pane is completely blank. Clicking Text goes right back to the Text view and I can continue editing. I haven’t added any plug-ins for years; any suggestions? Resetting the whole site to defaults seems like a last resort. The url for the Add a Page screen I was just testing on is http://joninge.com/wp-admin/post-new.php?post_type=page. The text editor works fine and I can publish new and updated pages without a problem, but I can no longer see what they’ll look like in Visual View before posting, which is a tad scary.
