Here's a little graphic bug:
http://www.civfanatics.net/uploads6/MixedPic.gif



To repeat: Download the save. Advance Science slider so that the next tech will be discovered next turn. Play the turn. When the New age pop-up appears, click Big Picture option. Then click Domestic advisor. Double click Dispargum.

http://www.civfanatics.net/uploads6/MixedPic558_AD.zip