I was getting too much AlbumArt with my Limewire downloads. It was sometimes useful to me in labeling some of the resulting CDs I burned, but it was really piling up & taking too long to search through. Then I discovered by accident that my Virus protection software I recently renewed (from McAfee) had a Quick Clean file cleaning program that I decided to run (it couldn't hurt).
That did the trick - removed all the AlbumArt from my Recent folder (where Limewire sent it). Another download program I used to use put the AlbumArt in the My Music folder & it is still there. Maybe there's a way to move My Music in the Recent folder... I'll have to look into that! Oh... don't run a program like I just ran until you are finished with your library of downloads because it will wipe out your entire music downloads!