templated web monitoring was implemented for 2.2, but error messages were not changed to identify host - it is now really hard to find which scenario is causing the messages. all messages should include host name, but a couple of examples :

774:20130508:100927.390 web scenario step "Local web scenario:" error: error doing curl_easy_perform: URL using bad/illegal format or missing URL
774:20130508:100927.408 web scenario step "b:b" error: error doing curl_easy_perform: Couldn't resolve host name