There's a seconds-long delay before I can log in

Beginning recently when I’ve tried to log in I’ve had to wait a few seconds until a dialogue box pops up that asks me to subscribe to the site’s ‘lousy’ (its word) newsletter, promising to keep me uninformed. Since this happens even before I log in it can’t know whether I have subscribed. This happens on my computer and the ones at UNM, so it isn’t just my computer or connection (UNM has a very fast connection.)

Just thought I’d let you know.