[Lynne]

I don't fully understand the problem. The image shows that "Posts: xx" is not showing - is that the full problem? It sounds like you are saying it shows up sometimes and not others? But that's that part I'm not understanding.

Try disabling your plugins and see if you still have this problem.
Note: To temporarily disable the plugin system, edit config.php and add this line right under <?php

PHP Code:

define('DISABLE_HOOKS', true);