[BNM] Why the addThis button may crash your IE browser

[David Andrew]

This caused a bit of a headache over the past couple of weeks.

IE8 kept crashing for some unknown reason. We filtered it down to the
addThis button that uses falsh files in its code.

You need a) an up to date flash player or b) you need to disable the
flash object of the button or you can get memory reference issues (IE
crash).

http://www.addthis.com/forum/viewtopic.php?f=2&t=862