Widget tells me: "No results".

I installed GD Star Rating on my site and it works fine. If I try to use the widget tells me, however, “No results”. How can I fix?

In this post simpleXX says to set the minimum to 1
http://wordpress.org/support/topic/gd-star-rating-widget-1?replies=5

but I c cant …
Thank you.

http://wordpress.org/plugins/gd-star-rating/