the site http://www.taa.de always crashes in IE8 on windows XP when loading a new page. I removed one javascript after another and found that the error was gone when removing html5shim.js.
There is no problem in IE7 (XP+windows7) an IE8 on windows 7.
The site was build in contao 2.11.5 and uses jquery 1.6.2 and typekit.
Thanks for helping
edit: when switching off jQuery it works. Are there any known interferences?
Try using the latest jQuery version. Maybe this helps.