Just stumbled upon this great (sounding) app. You need XP/Vista with IE7 installed. This app allows you to test sites with the rendering engines of different IE5.5, 6, 7 and 8. All in one app! http://www.my-debugbar.com/wiki/IETester/HomePage If it works as advertised, this may be worth a sticky in this forum. (he says humbly) Hope it comes in handy. It's an alpha, so there are bugs but the support forum is active.