We've viewed our site in IE8 and it's having trouble displaying the margin as we intended. The body margin is set at 100%. The site is supposed to fit the viewer's brower screen. It has been displaying correctly in IE and Firefox for several years, but now in IE8 it's having trouble. The right sidebar is not displaying unless the browser screen is maxed out, no matter how large the monitor.

http://www.ncmove.com

What could be going on?