We’re having the same problems on our site. Yesterday – installed the new WP 3.7 and it screws up the visual editor. The public view of the site is fine. BUT – there is a gray box that stretches way beyond the borders of the editing box, and does not show the pictures entered. Tried disabling all plugins and that did not solve the problem.
Any word on when a fix will be available? Or should we try and go back to an old back-up, where hopefully we can find Version 3.6?
Quite frustrated…
