I've been running WP-FileBase on my site (WordPress v3.1) for quite some time now and with great success. Recently, I upgraded from 2.9 to 2.9.13 to patch the SQL exploit, only to discover that my file tree no longer loads.
When you load the WP-FileBase page, the top level directories all display, but trying to expand them and view their contents results in an endless loading icon. If you place files in the top level, they can be seen but simply 'hang' when you try to download them.
I've tried completely uninstalling/reinstalling the plugin (including manually clearing the plugin folder and associated database tables) with no success. I've also checked the security/hidden file settings (and adjusted them anyway) with no luck. From reading through the forum, it seems a few other people have also had similar issues, but no one seems to have found a definitive or clear solution.
Thanks for all your time and effort in developing this plugin, it's really appreciated.