This may not be important, but it's on the same lines as SNM's post.
When I entered the evil slith fort in the Great Cave I went east from the outset into the door that leads to the room with all the barriers. It skipped the encounter dialog about the seeing a giant and the slith chieftain since I didn't go the center path. I got the encounter dialog about the giant and such as I left the area and after I had killed everything, which was sort of wierd.
I also remember a seriously delayed encouter dialog with the small vanhatai camp just west of Fort Remote.
Also, a few times when I resurrected my fourth character, his picture didn't show up (all his info and inventory did, as did the actual character on the screen, just no character picture), and wouldn't until I resurrected him again. Not sure what that was about.