Audio problem: After Carrie returns from dinner, she is using the computer when suddenly Aiden ("AidenNYC") is shown logging onto her AOL Buddy List (upper right of her computer screen). But for some reason, the show uses an 'IM Chime' sound. When someone logs onto their computer and appears on your Buddy List, it makes a different noise (usually a door-opening sound). The 'IM Chime' sound only happens when someone actually sends you an Instant Message. In this case, Aiden had not IMed Carrie. There was no IM on her screen, and he only appeared on her Buddy List. (00:18:40)
Audio problem: When Big calls Carrie and is leaving a message after Carrie has long since moved to Paris, Charlotte is there. She picks up the phone and says "Hi, it's Charlotte", but her mouth does not match the words. Her mouth says something like "Hey" not "Hi".