In the MOSS 2007 "Site collection users" page (... > Site Settings > Site Usage Summary > Site users), under the "User activity (past 30 days)" section there is a list of site users with their statistic (e.g. sharepoint\system). However, the link associated with each user points to a local server port URL (e.g. http://ssn1:23543/Person.aspx?accountname=sharepoint%5Csystem) which returns a 400 Bad Request or "User not found" error (depending on where the page is run).
How can I fix this to return a correct page?