It appears that some customers have been reporting rendering issues on Facebook when using the final release of Internet Explorer 9.
Microsoft has confirmed the problems, and indicated that some IE8 users as well as a number of early adopters that tested the browser during the Beta and Release Candidate (RC) development milestones and that subsequently made the jump to RTW are experiencing glitches.
It appears that at fault is IE9’s built in mechanism designed to help users view legacy websites the way they were intended for when built with IE6 or IE7 in mind.
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