@ oddible - that sounds like the problem I had. Did you add a barbarian worker to one of your cities? After I emailed cracker and creepster about it, they were able to give me a workaround: either
- abandon the city which had the barbarian worker (by right-click), or
- simply never use the F1 screen or go to that city's screen.
I found the second would be unworkable, so I abandoned my city after building a settler from it to resettle. Since it wasn't a critical city, it didn't have much impact on my game. I know that it's too late to submit now, but if you'd like to complete the game for your own enjoyment, you could try this.
Renata