Guys, i've just deleted thousands of tracks from my iTunes. However, the artwork and the songs still appear on my iTunes after i deleted them, but if i try to open it the message "the song xxx could not be used because the original file could net be found. Would you like to locate it?" would appear. Now when i try to add songs from iTunes to my movie project in iMovie, the above message would appear thousands of times and i will have to press NO each time. Any idea as to why and how to fix this problem? Thanks much.