Step to recreate:
1. Greate a URL resource with the following settings:
Title = Test of Streaming
Description = Test of Streaming
External URL = mms://streaming.missouriwestern.edu/Foster/beingintentional.wmv
2. Click Save and return to Course.
3. Click the link to the Test of Streaming resource.
Results: redirect to http://site/mod/url/%3Ca%3E%3C/a%3E
Message: Not Found The requested URL /mod/url/<a></a> was not found on this server.
Message: The webpage cannot be displayed...