Q: Downloaded latest iTunes 11.1.3.8. Error msg can't locate file

Downloaded latest iTunes 11.1.3.8. When I try to either download to my iPod Classic or play a song from my library, I get a message "can't locate original file".

I am able to play my iPod library songs in iTunes.When I go to C:\users\username\music\itunes, I see that the folder is 3.8 GB in size, but I can't se any of the music files.

It appears to be that this new version download has corrupted my files.

Can anyone offer any help?

Thanks,

Rich N