I have a site with ckeditor 7.x-1.16 installed (not the WYSIWYG module). I have a local dev (XAMPP windows) staging (Linux) and production (Linux).
In firebug net tab ckeditor.config.js and ckeditor.styles.js are showing as 403 - forbidden.
I have tried replacing my local copy of the ckeditor module and the ckeditor library with the ones from the staging server where ckeditor is working. This does not fix my dev copy.
I have tried upgrading to ckeditor 7.x-1.17. I have tried a new install of 7.x-1.16. I have tried deleting the ckeditor library and downloading a fresh version. I have tried moving the library files to the alternative location within ckeditor. I have tried to increase the permissions in windows of the ckeditor module (I believe windows doesn't have chmod). I have also tried chmod 755 on the module files on the production site. None of these has helped.
ADDITION: I have have made a new local version of the Staging server version (where the problem doesn't occur). The problem is on the fresh local copy, despite it having the same files and db as the staging version.