I am trying to get Joomla comment to only appear on some of the articles of the page. When I go to manage content settings I get the following:

Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /home/losha3/public_html/administrator/components/com_comment/toolbar.comment.html.php on line 29

Any ideas how to fix this? This happens when I go to "manage comments", and when I go to "Comment Settings"

Thanks for your help. I am using Joomla! 1.5.9