I've come to understand that IE9 does not recognize 99% of HTML5 or 100% of CSS3. (YIKES! This browser is 2 years behind the curve!)
Here's a way to get your theme IE9 friendly. It takes all of the HTML5 elements used in the Twenty Eleven theme and parses them so that IE9 can understand them.
Embedded Link
windows pc running pre loaded chrome browser will boost pc sales =P like everyone says IE is the best browsers in the world to download google chrome
I haven't heard that saying before, Sharuque, but I love it and will adopt it readily!