Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
T
Even changing the Toolbar icon size will affect the viewport. I always ensure that I only have one row of small icons in my view - I'm kind of stuck with it due to the number of projects set up to match SU output and render output.