Search icon is missing Rated 5 out of 5 stars

Firefox 10.0.2, Omnibar 0.7.11.20111111

The icon of the search engine isn't shown. I can't make it appear and can't change the search engine.

This review is for a previous version of the add-on (0.7.11.20111111).  This user has a previous review of this add-on.