Hi Daniel,
I'm afraid I still have not got this working! I have uninstalled my instance of Joomla and re-installed, but this did not help. I have ensured that I have the correct api key set in the configurations in "Map > Api key". I have also ensured that I have my domain allowed for this key, see attached screenshot, the domain is sdmxc.net
On your plugin page it states that "Based on the latest Google Maps API v3 - it's fast - no API keys are required!", is this correct?
Any help on this would be very much appreciated?
Glenn