Continuity mistake: When Veronica gets the SMS about Aaron's verdict, her hands switch around from being below to above the desk.
Continuity mistake: The morning after Veronica is raped, she readjusts her dress' strap on her left shoulder. In the immediate shot after, the strap is down again. (00:22:00)
Other mistake: Season 1, episode 19, Hot Dogs. After Veronica bugs the Spanish-speaking man who returned the dog in the park, a shot of her laptop is shown. It's the exact same shot as when Veronica was helping the valedictorian front-runner find out who was harassing her. There are books and even the girl she was helping in the shot, proving that the shot was not in Veronica's car, as seen in the very next subsequent shot.
Continuity mistake: Episode 1-19, "Hot Dogs": in the scene where Mandy is reading "Judy Blume," she holds the book with her hands on both covers, but in the next shot, her right hand jumps to the bottom of the book's spine. (00:20:20)
Other mistake: Keith tells Veronica that Woody's password is "mrgoodwood." When she types it in, 11 characters are entered, but the password is only 10 characters long. It can't be a "." because Mac OS doesn't use that character in passwords.
Continuity mistake: When the lady knitting is talking about why the motel manager took so long to look out the door, she isn't wearing her glasses. However when the shot changes to looking down the table at Veronica, you can see her glasses on her face on the left hand side.