Image Assist seems to look for a css file which is not required by my zen subtheme. Seems to be the same issue as https://drupal.org/node/338490

I get this kind of error. Many of them. Seems to be related to ImageAssist as far as I can tell.

Thanks!

TYPE page not found
DATE Wednesday, October 20, 2010 - 14:24
USER Verena
LOCATION http://mimo-project.eu/sites/all/themes/zen/mimozen/zen.css
REFERRER http://mimo-project.eu/img_assist/header/properties
MESSAGE sites/all/themes/zen/mimozen/zen.css
SEVERITY warning