Replying to Tabber Widget Does Not Display Google Maps Correctly

see also your other post

The example site to show the map display problem is http://www.3649campanildr.com/, Look under the 'Lot Map' tab to see the problem. As I've said above, if I place the same Google Map widget into a new iThemes layout widget area on the same page, the map displays properly...

When I insert either a Google Map widget or a shortcode in TinyMCE representing either a small or large Google Map, the map frame displays properly with typical Google identifiers, scale marker, map type, zoom, etc, but the actual map is only rendered in maybe 1/5 of the upper quarter of the map space.  Attempting to drag the rendered portion of the map shows that the map is updating the drag, but never renders the map beyond the small upper left corner boundary.  This behavior is both on IE9 and FireFox browsers and replicates on several other computers on different networks.  I need help to either work around the problem or fix the problem of displaying Google Maps within a tab!!