I wish Ken...
I did try to add my work-station to the computer list for file transfer and it just looks at me (doesn't crash or anything) I just type info in and click the button and nothing happened.
I think because I couldn't add my work-station that I logged out - prior to that I was seeing Itunes okay. But trying to log-out and back in is when the issue likely happened. Sometimes you don't see a problem when it first pops up, or think "Hmmmm that was unusual" then dismiss it. So the moment all went to crap is a bit fuzzy, but no recent updates of any kind.
I am very good with with the virus wear and system maintenance, nothing happened outside of I tunes, but I have to add this is NOT an uncommon problem - lots of post around the web asking and the fix just gives me a bit of anxiety. I think I need Facetime and a tech to fix this