same situation with "use jQuery=No". Maybe your hint concerning the themplate is helpful and I will do some evaluations. Important for me is to know that the reason is not a basic problem of the plugin or the Joomla-version.
The plugin (version 1.3.1) worked fine for me with Joomla 2.5.x. After upgrading to Joomla 3.3.6 (without any changes for the plugin except 'use jQuery = YES') the map display is no longer working. Any idea what is going wrong?