Don't Repair Permissions, fix the album.
Just a guess: Try going into Disk Utility, selecting your hard disk, and pressing 'Repair Disk Permissions'
Is the art added by you, or by iTunes automagically?
YEEEEAAAARRRRRGH!!!! Repairing permissions is useless. The number one thing is that repair permissions doesn't even touch any user's home folder, so if permissions on the library itself are actually screwed up, 'repair permissions' won't fix it anyway.
This has
nothing to do with the album art itself. The problem is that iTunes doesn't really think that the songs are part of the same album.
Two questions:
1. Is the album by a single artist, or is it a compilation (like a movie soundtrack)? If it's a compilation, make sure the 'compilation' check box is checked. And, if you have your songs organized by artist, then the album *WILL* be split up.
2. In the info for the songs, do they have the
exact same Album Name and Album Artist? If Album name and artist are the same, it will treat them as the same album.
What I see happen is an album by a single artists where one or two songs have a "xxx featuring yyy" as the artist. iTunes then treats it as a completely separate artists, and therefore a separate album. Make sure the 'Album Artist' is the 'real' artist, then you can have the 'Song Artist' the 'correct' "featuring yyy" one.
So, is this basically what you are seeing (I've limited it to one album for my demo, and have exaggerated it to have many listings,):
If so, then just add the same "Album Artist", and it will fix itself, like this:
Note that
all I did between the two pictures was to add an "Album Artist" that is the same for all songs. (Highlight them all, Command-Return (or Get Info,) and type in the name in the "Album Artist" field. Also make sure that the Album name is the same, too.)