Web page rendering issue on Maven in 5 Minutes

Background: my organization is providing hands-on Continuous Integration training courses, and as part of that, we bring up the Maven in 5 Minutes web page (http://maven.apache.org/guides/getting-started/maven-in-five-minutes.html). Every class so far there has been a little moment of "huh?" when students get to a huge blank part of the guide they have to scroll down through (screen shot attached). The problem only happens on non-wide-screen monitors, and only in IE. However, as you see from the screenshot, it's pretty odd.