I'm pretty aggrevated right now because both iPhone and iTunes stopped working after an update. I get the "_____ cannot be opened because of a problem" for both of them. I already reinstalled iTunes. But how do I go about reinstalling iPhoto? I'm also pretty worried about all the photos I had in there. Don't think they were backed up. Will removing and reinstalling the iPhoto app make me lose all those photos? Are they already gone? I have a 2010 Macbook Air.