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user_id=6405

It behaves this way because all links generated by Roundup 
are relative and at the same path level within an instance. So 
if the instance is accessed with a url that doesn't indicate that 
the instance is a "folder" to the browser, then the relative links 
will appear to be at the same path level as the instance itself, 
which is wrong. We need the trailing slash for this reason. 
 
Since the issue first came up, there's been a need to be able 
to generate an absolute URL (for the classhelp popup), so we 
should be able to fix this.