That page doesn't work on vanilla IE 9 - there's flashing boxes that pop up over the text and artifacts all over the place. Is it really that hard to support t

That page doesn't work on vanilla IE 9 - there's flashing boxes that pop up over the text and artifacts all over the place. Is it really that hard to support the browser that millions of people in offices are forced to use? Partial screenshot - http://i.imgur.com/8kP0b.png http://i.imgur.com/8kP0b.png