If there is an gravatar it`s show up correctly. Great.
But if someone don`t have an gravatar a image with the name avatar appears.
With a strange link to http://i2.wp.com/localhost/test/components/com_comment/assets/images/nophoto.jpg when i right click and view image select.

Properties give me a link to:

http://www.gravatar.com/avatar.php?gravatar_id=*********&default=http%3A%2F%2Flocalhost%2Ftest%2Fcomponents%2Fcom_comment%2Fassets%2Fimages%2Fnophoto.jpg&size=64

How can i change this?