[Here's the test page with a basic border-radius element. [URL="http://jsfiddle.net/observint/LEUEt/"]Here](http://www.supercircuits.com/ie-test) is the same exact code hosted elsewhere.
On IE 11, the test box simply doesn't have rounded corners... but shows rounded edges, with the same exact code, on other sites just fine.
The IE code inspector here shows that it's just not even recognizing border-radius as a legitimate attribute - but again, only for our site.
Any idea why this is happening?