I’m running into the same problem on a Pro installation. Strange thing is that it’s on a WP that’s on the same server as another one with basically the same theme. I’ve switched the theme to Twenty Eleven and have started disabled the few other plugins installed. So far no joy. Two WP’s, same server, same version of EC Pro (2.0.10). One displays the google map right on the event, the other does not. Double-checked and made sure that the map option is enabled in both the general settings and also on the individual event.