Preferences page not found

I am useing RT 3.8.1 with appache and fastcgi 2.4.0 with mod_fastcgi

After logging on when I click preferences I get page not found

My httpd.conf

<VirtualHost 10.165.1.92>
ServerAdmin horwitz@argoscomp.com
ServerName rt.argosservices.com
DocumentRoot /usr/local/rt3/share/html
AddDefaultCharset UTF-8

FastCgiServer /usr/local/rt3/bin/mason_handler.fcgi
AddHandler fastcgi-script fcgi
Alias /NoAuth/images /usr/local/rt3/share/html/NoAuth/images
ScriptAlias / /usr/local/rt3/bin/mason_handler.fcgi/
DirectoryIndex index.html index.htm index.shtml
<Directory "/usr/local/rt3/share/html">
   Options FollowSymLinks ExecCGI
   AllowOverride None
</Directory>

my RT_SiteConfig.pm

Set($rtname, ‘argosservices.com’);
Set($Organization , “rt.argosservices.com”);
Set($OwnerEmail , ‘horwitz’);
Set($WebBaseURL , ‘http://rt.argosservices.com’);
Set($WebPath , ‘/’);
Set($WebImagesURL , $WebPath . ‘/NoAuth/images/’);
Set($CorrespondAddress , ‘correspond@rt.argosservices.com’);
Set($CommentAddress , ‘comment@rt.argosservices.com’);
#Set(@Plugins,(qw(Extension::QuickDelete)));
#Set($WebDefaultStylesheet, ‘3.5-default’);

Please help

Sam Horwitz

horwitz@argoscomp.com (Samuel A Horwitz)