The map look weird when enable "Use a Google Map to set latitude and longitude" when using Gmap-6.x-1.x-dev

This works ok if we use gmap-6.x-1.0 that required to have Google Gmap API key. This key is retired now in google since Gmap Javascrip API V2 is retired. So we have to upgrade to gmap-6.x-1.x-dev so that it will work with Google Gmap Javascrip API V3.

After upgrade to this version of gmap, it doesn't need API key from goole in order to get the map. But then the map to use for user to pick location (this option only available if you enable it by going to admin -> site configuration -> Location -> Main Settings -> heck the box “Use a Google Map to set latitude and longitude”) is weird now.

Only part of the map is show up and can't drag and drop the map. Look at the attached image.

I am not sure where is the root cause. Whether it is gmap or location? So I just report to both issue queue. Here is the link in gmap queue http://drupal.org/node/818638#comment-5806854

Thanks