When navigating to:
http://logback.qos.ch/manual/appenders.html
using Internet Explorer 8
main page renders only header of the page...

It may be caused by javascript error:
Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET4.0C; .NET4.0E)
Timestamp: Wed, 30 Jan 2013 08:10:24 UTC

Message: Object doesn't support this property or method
Line: 96
Char: 3
Code: 0
URI: http://logback.qos.ch/js/decorator.js

Regarding easy workaround like using newer version of IE or other compatible browser or reading source html - due to some policies in my work I am forced to use only IE8... Please fix this.