This person (http://www.uesp.net/wiki/Morrowind:Codus_Callonus) won't give me the Red Book of Riddles in the Courtesy quest for free, claiming that he already gave me one, even though he didn't. I just bought it from him, but still, a fix is always better than no fix.
Looks like this bit of
Looks like this bit of dialogue wasn't completely restored. I'll fix that, thanks for reporting.