[Plugin: Google Authorship Widget] image alt

I am getting messages in my bing webmaster tools that my images are missing the image alt description.

The funny thing is I double checked and they all have alt tags.

I use the authorship widet and that photo does not have the alt tag so I think that is what might be triggering the errors.

Is there a way to add the description for the image?

http://ww.wp.xz.cn/extend/plugins/google-authorship-widget/