Problems since the update ;(

The content box on the New Post page isnt letting me enter any content and doesnt have any of the rich editing tools on display to interact with either, ive tried re-installing wordpress going back to twenty ten/twelve theme ive tried re-uploading wp-admin and includes folder. ive deactivated all my plugins and tried almost everything, i dont know what todo im at abit of a loose end with it all. http://samsblog.info