And in addition to that, what it supports.
On the other fledgling forum, part of crazynutsx' campaign to plagarize the web is to post a graphic from a creationist site with minimal accompanying text that basically says that the graphic says it all. My Win7 box with IE9 displays those graphics with no problem, whereas my computer at work with cannot; neither IE7 nor FireFox2 will display them.
And I'm sure that Percy can talk all our ears off about the pain of setting the forum software up to support all browsers out there.
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