Hi, I have a server with two installations of EPiServer - 4.51 and 5.1. Every thing works fine with one exception. When trying to get the defult document (startpage) for the 5.1 intstallation i get a "NullReferenceException" www.mysite.net/sv <- works www.mysite.net en><- works www.mysite.net default.aspx><- works www.mysite.net><- does not work and - yes - ive checked default document settings in iis. this is the error i get: stack trace: nullreferenceexception: object reference not set to an instance of an object. system.web.httpcontext.rewritepathvirtualpath filepath virtualpath pathinfo string querystring boolean setclientfilepath 40 system.web.httpcontext.rewritepathstring filepath string pathinfo string querystring boolean setclientfilepath 51 episerver.web.urlrewritemodulebase.beginrequesteventhandlerobject sender eventargs e 585 system.web.synceventexecutionstep.system.web.httpapplication.iexecutionstep.execute 92 system.web.httpapplication.executestepiexecutionstep step boolean completedsynchronously 64 any ideas>