Hello, I just installed the plugin but I can't open any of the language files for editing. When I go to Tools > Manage Translations, I get the list of all available translation files. But when I click on any of the files, the browser simply reloads the same page. The file permissions are all OK. I'm using WP 3.8.1, theme is Twenty Thirteen, plugin version is 1.4.1 installed manually. Would be grateful for any suggestions. Thanks.