Oops Im sorry I slightly misread your first post, I thought you said "there is supposed to be cover
FLIP art shown for every album. But it's not there"
I read a word you didn't type and thought you was talking about the "Cover flip" feratuer in iTUnes not working
I see now your talking about cover artwork not being downloaded and added to the songs. iTUnes only has artwork for songs it has in its store. Also the tags on the song have to be EXACT for the most part. FOr example....
I had the album "Missy Elliott - So Addictive" and it would not find the artwork. I knew they had to have her album in the store so I manually looked in the itunes store for her album. This is now they had it listed
Artist: Missy Elliott
Album:
Miss E...So Addictive (Note the 3 dots between E and So)
Soon as I changed the album name to that (With the 3 dots) BOOM artwork came right up