apache's .conf setup:
 <Location /svn>
                DAV svn
                SVNParentPath /repository/svn/
                AuthPAM_Enabled on
                AllowOverride None
                AuthType Basic
                AuthName "Subversion repository"
                #AuthUserFile /var/svn/conf/svnusers
                AuthzSVNAccessFile /etc/apache2/svn-access
                Require valid-user
        </Location>

        ScriptAlias /viewsvn /usr/lib/cgi-bin/viewcvs.cgi
        <Location /viewsvn>>
                SVNParentPath /repository/svn/
                AuthPAM_Enabled on
                AllowOverride None
                AuthType Basic
                AuthName "ViewSVN"
                AuthzSVNAccessFile /etc/apache2/svn-access
                Require valid-user
        </Location>

The Error:
An Exception Has Occurred
Python Traceback

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/viewcvs/viewcvs.py", line 3235, in main
    request.run_viewcvs()
  File "/usr/lib/python2.4/site-packages/viewcvs/viewcvs.py", line 360, in run_viewcvs
    self.view_func(self)
  File "/usr/lib/python2.4/site-packages/viewcvs/viewcvs.py", line 1595, in view_directory
    generate_page(request, cfg.templates.directory, data)
  File "/usr/lib/python2.4/site-packages/viewcvs/viewcvs.py", line 684, in generate_page
    template.generate(sys.stdout, data)
  File "/usr/lib/python2.4/site-packages/viewcvs/ezt.py", line 253, in generate
    self._execute(self.program, fp, ctx)
  File "/usr/lib/python2.4/site-packages/viewcvs/ezt.py", line 370, in _execute
    step[0](step[1], fp, ctx)
  File "/usr/lib/python2.4/site-packages/viewcvs/ezt.py", line 410, in _cmd_if_any
    self._do_if(value, t_section, f_section, fp, ctx)
  File "/usr/lib/python2.4/site-packages/viewcvs/ezt.py", line 442, in _do_if
    self._execute(section, fp, ctx)
  File "/usr/lib/python2.4/site-packages/viewcvs/ezt.py", line 370, in _execute
    step[0](step[1], fp, ctx)
  File "/usr/lib/python2.4/site-packages/viewcvs/ezt.py", line 430, in _cmd_is
    value = string.lower(_get_value(left_ref, ctx)) == string.lower(value)
  File "/usr/lib/python2.4/site-packages/viewcvs/ezt.py", line 522, in _get_value
    raise UnknownReference(refname)
UnknownReference: num_dead