http://lunarmedia.com/blogs/lunarmedia_blog/archive/2008/08/19/upgrading-cs2007-to-cs2008-dynamicstyle-aspx-in-ie6.aspxWhen upgrading a website it is usual to setup a test site of the new version. In doing so, it is important to get all IIS settings moved aswell. When Http Compression (IIS6.0) is enabled at a website running Community Server it is crucial that you disableenCommunityServer 2007 (Build: 20416.853)