DLP API problem

I am trying to connect to my Enforce server via the API using the downloaded ZIP.  I have changed nothing in the code, and I cannot authenticate against it.  I have a valid account on the server as well as API access.  The only message I get is "Authentication Failed".  Is there a way that I can get a more detailed explanation as to why this is failing?  Here is my command:

ReportingAPISample "URL=https://leftout:8443/ProtectManager/services/v2011/incidents""USER=username""PASSWORD=leftout""REPORT_ID=571"

I've tried leaving the quotes out, and that doesn't work, either.