OK I updated my WP to 3.8 the other day then my visual editor stopped working.
I tried all sorts to, called GoDaddy, reading blog and so on and nothing worked.
Then I started looking at the plugins. For me it was easy because I only have 4 plugins on my WP:
Comment Disable Master
Fast Secure Contact Form
Jetpack by WordPress.com &
Leaflet Maps Marker ®
I unplugged them and tested them one by one. For me it was Leaflet Maps Marker ® that was causing the problem. Just to make sure I plugged them all back in except Leaflet Maps Marker ® and that confirmed it. It was that one.
Hope this helps