heavymark
This solution has also been discovered by other members in the forums with the same issue. Hope this helps people, as everyone on here, will simply tell you to double check you username, password, and database name.
I have it installed on several development sites just waiting until its 1.5 Native. Wondering how much longer that might be so I can can incoporate these into my lives sites.
Also, clients use Google Maps at google.com to create custom icons and locations easily and can export to KML. Are you working on a way to import a KML file, or link to a KML file uploaded onto the website? I currently use another google map plugin on here that does just that and is 1.5 native, but it does not allow for importing coordinates for polygon outlines like yours does. Thanks!
Most likely there will be no native version for Joomla! 1.5 ever. First because native or legacy makes not the slightest difference in functionality (and speed) of this plugin at all (in fact the map configuration page loads even faster in Joomla! 1.0 than in Joomla! 1.5). Second because of lack of financial support. Donations so far do not even compensate the wear off of my computer equipment while writing this program. Third when Joomla! 2.0 comes out there is a good chance 1.5 native versions (and even more 1.0 versions) are not going to work with this new Joomla! 2.0 native anyway. So in the end this would mean testing, maintaining and supporting (and writing in the first place of course) three different versions of this plugin. One for Joomla! 1.0, one for Joomla! 1.5 native and one for Joomla! 2.0 native. Furthermore if new bugs are introduced during rewriting I will get bombarded with emails asking for support. Sorry, but I have neither the time nor the mood for that. But if there is a way adding real new features to this plugin (not rewriting the whole code for native sake only) within a few coding hours, I will see what I can do.
Joomla 1.5.8, php5, Firefox for Mac. 1.5 Legacy Mode.