When I rip a CD, iTunes used to provide cover art, but no longer does so, even when the CD is available on iTunes. I used Album Artwork Assistant to get some of these missing covers, but now it won't paste them when it finds them - it says there is a parameter error, or that it can't get track id 2442 of playlist id 2094. Since I haven't got any playlists this is a puzzle. Any ideas?