Problem
Mac OS X will sometimes come up with an error saying Mac OS X needs to repair your library, type in the administrator account to repair, but typing in any administrator account doesn’t fix it. Below is what you have to do to fix it.
Solution
Go into the affected users document and delete the desktop, download, library, pictures and videos folders. Only the ones that have been create by Mac, not the ones that say My in front of them that are created by Windows. Also delete the .temporaryitems hidden folder. (not all need deleting to fix the problem, seems to be the main ones that need deleting IE, Library, Desktop, Documents) Students are creating a folder inside document sometimes to save Garage Band into, but they supposed to save it into the root of their documents, so check inside before you delete.