This is most likely a problem. Try temporarily replacing
<script type="text/javascript" src="/js/modernizr-1.7.min.js"></script>
FROM
<script type="text/javascript" src="http://ajax.cdnjs.com/ajax/libs/modernizr/1.7/modernizr-1.7.min.js"></script>
Or it may work, but it is not obvious. Keep in mind that you don't see Modernizr classes when viewing the source, you need a tool like Firebug on FF or developer tools in Chrome to actually check the code after javascript.
An extra test will do something like ...
.borderradius body { background: #c00; }
And if the background is red, then Modernizr works.
Duopixel
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