Hi, it's Jon.
I'm having a map mare too....
tardisnetwork.com/badwolf/index.php/grid-map
I've set the Joomla 2.5.6 settings to:
Map Cache max age: 10
Grid Map Width: 800
Grid Map height: 300
Default Map Size: 100
Minimum Map size: 5
Maximum Map Size: 100
Zoom Step: 5
Horizonzal Center Offset: 0
Vertical Center Offset: 0
But when going to the page with the default template (as we've had this template problem before) I get large boxes with no way to scroll around the map.
I notice yours also allows you to tp to the region....is this feature out now or in a future release?
Best wishes.
J