My blog is http://www.mandyjill.com.
I recently upgraded to 2.9. Now, when I go to Appearance Editor in Admin and try to edit any pages, it gives me this error:
Oops, no such file exists! Double check the name and try again, merci.
I can always download the files and edit that way but it's a pain in the butt and I want to be able to edit pages/css via WordPress admin panel.