I am unable to upload files to courses created in the last month or so (when we were forced to change from a .com site to a .org site) on our site. I can upload to any pre-existing course, but uploading to a new course gives an error message. I can select "Link to a file", browse and select the file, and click "upload", but where it normally shows the file in the list of resources, it instead displays an error message that says, "File not found - are you sure you selected a file to upload?" I can upload the same files to other courses that were created before the change. Has anyone else experienced this? Any ideas?