Ok so I am going to start with I have a MAC, which matters because I belive this to be a filing issue.  I have a Mac becasue I can not stand windows 8. This is first REAL problem I have had with the change. That said lets move on to the problem   About 2 weeks ago I downloaded a custom modpack (apoc tech and RPG) for a server and had fun and no problems. Today I went to log on and got a crash and message saying that basically every folder/ everything else was returning duplicates. After deleti