In the Stats tab of the Investment analysis, there are sections of information that can be collapsed and expanded. In Internet Explorer versions 7 and 8, the graphs in the Stats tab overlap with the other sections in the window, when the window is scrolled up or down.
The charts use Dojo and generation VML for Internet Explorer versions 7 and 8, and this issue is due to a limitation in the VML engine.
IE7 and IE8
Resolving the problem
Collapse the section that has the graph before scrolling and moving to another section.