The Watchful Proctor (Now Isn't That Redundant?)

The other day I was asked how to keep students taking online tests in a proctored test site from opening other browsers and looking for the answers. Wait.....isn't that the point of the proctor? So maybe we need lock-down software in situations where there is no proctor, but if the proctor is a real, live person then he or she should clearly be able to tell whether or not a student is opening multiple browsers when taking an online test. This assumes, of course, that the proctor is really watching. That he or she is on premises and is paying attention to his or her proctorees. Of course we don't have guarantees of this watchfulness - but neither do we in the face-to-face classroom. The point (again) is that it's really no easier to cheat in front of a Dell computer in 2009 than it was on row 7 of the lecture hall in 1979.