I'm experiencing a hard crash running Modernizr 2.5.2 in IE8 (Windows XP) under these circumstances:

1. Include styles before Modernizr (as recommended)
2. Include a background image on the body
3. Include Modernizr with a test like "generated content".

Reduced test case: http://jsbin.com/etoget

That test case includes a build of Modernizr containing just the generated content test as an example of the type of test that crashes IE8 - not all tests do; I think only those that involve style/dom injection.

Thanks

Edit: Potential fix (via similar jQuery resolved-bug - http://bugs.jquery.com/ticket/9823)

Fixed example: http://jsbin.com/etoget/2/

Fixed by adding background: none to the injected <style> block for the fake body