IE URL length has limitation， and when SiteScope create quick report, it will use method "GET".
so if we expand the parent group and choose some monitors in the group, the length of URL is tend to exceed the limitation,
and it will get error:"Page Not Found"
but if the URL use method "POST", it may not be affected by IE URL length limitation.
so please consider change quick report generation method from "GET" to "POST"?
Thanks and Best Regards