Hey Bruce/Folks,
Have upgraded some old mapping code to V3 of google maps api.
Experiencing a strange "only shows a portion of the map" issue.
On googling, found this ..
http://stackoverflow.com/questions/4358582/google-map-shows-only-partially.
Seems to be saying you should not "display:none" the div.
Problem for me is, the maps div lives in a tab on a form, which is display:none'd by the template.
I could probably do something similar to the so post answer. Mark the maps div specifically as "display:inline;", then hide it after the map has loaded. Will give that a crack.