There is a program called NetXRay. I''ve used it to test to see where my network program could be having problems. It seems to be able to do everything except take out your trash.

You installed the network monitor agent. I know that win2k server and up have the program, not sure about professional. You could just download the SMS 2.0 120 day Trial edition from Microsoft''s website and somewhere in the installation files for it, there is network monitor 2.0.