Ooh I think I know why - version error on my end (I didn't see that Whoward had bumped the version up in his variables to 53, whereas I absent-mindedly left the DLL at 52).
Fix inc. Also added trade route to/from a city as a means of removing 'no connection' unhappiness penalty.
G
Wait, so my image was somehow useful? :O
I'm off to sleep, so hopefully things are fixed soon enough!