The hills and bicycle and all the other nice stuff in the header of the new redesign completely disappear in IE 8:
What it's supposed to look like (Chrome):
What it looks like in IE 8:
Confirmed, I can repro with IE9 in IE8 mode (via the f12 developer tools).
We no longer officially support IE8, and this problem doesn't affect the functionality of the site.
background-images
applied tobody
. I'm guessing that IE is ignoring the first one (that scenery).