I have the same problem and got the same warning that explorer was out of date. I still can’t move any widgets and the right hand column is blank. The actual website view seems ok. I have disabled and enabled all widgets and changed a few themes with no avail. I have a few wordpress sites and this only happened to one “with the ie error on login. The same site does the same thing in all browsers. It is a WP error. Would the upcomming update fix this. I don’t want to re install everything.Here is the site in question http://www.roofshingles.com.au
Kind regards,
Richard.