In a previous tip Paul Yanez showed how Expression Blend does not render effects if you are zoomed
in above 400%. In this one Paul explains how to change the zoom setting to 800% and render the effects properly.
More times than not I am zoomed in well above 400% when I am designing UI components. I found out how to change the zoom setting to 800% and render the effects properly and allow me to design how I am accustomed to.