Hello, I used an application deleter to delete applications I rarely use. Now I'm having problems with my iTunes. The warning message I get is "F4MDamageTitleStr." It comes up when I try to open iTunes, or try to download a song into iTunes. I downloaded the new version of iTunes but that message still comes up. Also, when I try to start the Photobooth application, the same error message shows and the app doesn't open. Any tips on what I can do to get iTunes and Photobooth working again? Thanks.