Hi, I do not have any theme options under the Events -> Settings. If you mean WP themes itself, I have tried to switch them around and nothing happened, had the same problem with Googlemaps. I have also tried to use different Templates under the Events Settings, again it did not help.
I turned off each plugin to see if there is a conflict, nothing happens again.
It is interesting, I have not change anything except updating the Events plugin since August, I have not upload any new plugins, have not used any new themes or settings.
I actually have a backup of the previous version of the Events plugin, was trying to see if there is any difference in php files, seems like everything is the same. And when you debug a page, it looks like it gets the right code but for some reason just does not show up.
I guess I will try to switch the JS files around and see if that will work.