Oh I am kicking myself so much now. I had the iTunes media folder on a partitioned external HD which was fast running out of space. So I copied the folder back to my internal drive, reformatted the external disk to one partition then moved the iTunes folder to the external hard drive. Reset preferences on the iTunes to the new non-partitioned external hard drive. Yep I can hear you all groan at my stupidity. Opened iTunes only to realize my mistake. All the songs, movies, tv shows etc all have that "!" next to it because I have obviously broken the links! Anyway that I can save myself hours and hours of painful locating each song and show?