I am using the CorporateClean theme for Drupal 7.15, and I have an issue using CKEditor with this theme.
When an authenticated user writes some content, the background of the CKEditor text editor (the area where the user can enter and format text) turns black. I do not have this problem when login as the admin. I also do not have this problem if I remove CKEditor.
How can I change this background?