3.4.2 After upgrade problems

Uhm, so I upgraded my site and encountered some weird thing. Button to add/update custom post meta disappears after being pressed. Nothing changed of course, in other words, postmeta is not saved to db.
Am I the only one that got this weird problem after update?
Browser used is Opera. See screenshots
http://i48.tinypic.com/34q6b1f.jpg
http://i50.tinypic.com/12665u9.jpg