Well, I'm yet to install a patch that doesn't break something while fixing another. I don't know whether it is carelessnes, lack of knowledge, or lack of QC, but this behavior seems to be widespread among all developers. I think they'll have a real breakthrough once they realize what causes it and release the very first "faultless" patch some day.
Although Patch 2 seems to greatly improve the Game, there are some issues popping here and there, that weren't there before.
I just completed Larian's, err... Librarian's quest and did not receive my Dragon Skill book even though he said he gave it to me. To me, that's a big one. I can live with small stuff like Peavey's treasure chest coming up empty but this one did bother me.
Since we don't have a "BUGS" thread, I decided to put it here instead of the "Technical Issues."