Itunes locks up, and I need to repair disk permissions.

Question

Itunes locks up on my Imac after it has been running for a while. I have had to repair disk permissions, which show many Itunes corrections are needed. I am running the latest Itunes.

Answer 1

Disable Photo Stream in iPhoto's preferences and then go back and reenable it. See if that will jump start the process.  If that doesn't help try this:  make a temporary, backup copy (if you don't already have a backup copy) of the library and try the following:
1 - delete the iPhoto preference file, com.apple.iPhoto.plist, that resides in your
     User/Home()/Library/ Preferences folder.
2 - delete iPhoto's cache file, Cache.db, that is located in your
     User/Home()/Library/Caches/com.apple.iPhoto folder. 
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3 - launch iPhoto check its preferences to meka sure all is as you expect and try again.
NOTE: If you're moved your library from its default location in your Home/Pictures folder you will have to point iPhoto to its new location when you next open iPhoto by holding down the Option key when launching iPhoto.  You'll also have to reset the iPhoto's various preferences.
NOTE 2:  In Lion and Mountain Lion the Library folder is now invisible. To make it permanently visible enter the following in the Terminal application window: chflags nohidden ~/Library and hit the Enter button - 10.7: Un-hide the User Library folder.
OT