Authconfig has a lot of dialogs with close buttons in it. These are implemented as GtkWindows. They should be implemented as a GtkDialog, so that Esc will work. Additionally, it would be nice if you could Cancel out of the sub dialogs. Nalin, if you want I can work up a patch really quickly to do this.
jrb, you fixed this already. Go ahead and close this one.
I already got this one.