iTunes doesn't launch in Mavericks
Since I installed OS X Mavericks, iTunes doesn't launch anymore. I've Version 11.1.2
After clicking on the iTunes icon in the dock, it jumps once and this point that shows that an application is started appears under the icon. No window opens. In the menu bar, there is only written "iTunes" but not the other that's there usually. If I click on theword, it becomes blue but the pop-up menu doesn't open.
No error log appears.
I cannot quit the crashed program by doing right click-quit in the dock, only by alt-cmd-esc
OS X Mavericks (10.9)