Quality settings problem

I downloaded the beta/trial of unity. I'm doing some tests to get an idea of its capabilities and I've run into a problem. I can't seem to get the quality modes to work. I'm sure I'm missing some important step, but I can't figure out what it is.

To illustrate I created two custom quality modes, one with 8x antialiasing and very high resolution shadow maps, and another with no antialiasing and low resolution shadow maps. I can't see any difference between them...

Any ideas what step I'm missing?

Scaled down it's harder to see, but if you copy the images url and look at it directly you can see the problem more clearly.