Collapse-o-matic

Hi, great plugin, but having difficulty getting it to work properly with collapse-o-matic. The map doesn’t display correctly (all I see is a small bit of the top left corner of the map)

There was a previous thread about this, but the answer points to a non existent forum message.

Hope someone can help?

Thanks

http://wordpress.org/plugins/mappress-google-maps-for-wordpress/