[Plugin: WordPress.com Stats] WordPress.com Stats blank graph in dashboard

The graph is generally blank on the dash, although sometimes it shows part of a login screen to WordPress.com — I go ahead and tab through the fields and login, then it goes blank again.

The top posts and most active are there. View all takes me to the other page where there IS a graph.

This happened all of a sudden today and is the same regardless of the computer, browser, etc.

http://wordpress.org/extend/plugins/stats/