Hi,
When in the music area there is the menu section on the left and the detail list on the right. The one in the middle has the artists listed - it's that one.
OK, now I get what "menu" you are talking about. Were these songs ripped from a CD by iTunes or another program (name program if it wasn't iTunes)? What format are the problematic songs in? Did you manually attach the album art or did automatically download it?