Maybe I found a solution. I had the same problem with ie9 and saw it was running on compatibility mode….don’t know why.
However, i solved it putting on the header.php the following meta:
<meta http-equiv=”X-UA-Compatible” content=”IE=edge” >
header.php on line 1. This meta tells IE to run as the highest version possible, hiding the compatibility view button.
Hope it helps…
cheers
Alex