EQDKP plugin version 1.3.2c and previous versions do not work properly under PHP 5.2 . One gets a message similar to
No server interface was found at the specified location
when trying to connect.
Important note: The version below appears to still have some compatibility quirk. Please wait for the next version before updating.
A new version: 1.3.2d (which is compatible with PHP 5.2) has been released. So if you (or your webhost) are upgrading to PHP 5.2 then you also need to upgrade the plugin. If you're not planning to upgrade then the new plugin version brings nothing new and can be ignored.