iTunes grayed-out menu I know this is not a new problem, but I haven't seen a solution to it so I figured I'd go ahead and see if anyone has come across a solution here:

Sometimes iTunes grays out menu bar options such as Quit iTunes and Add to Library. I never noticed any pattern about when this happens, but I've read that others experience it after editing tracks in their libraries. I've also checked for open dialog boxes somewhere, but I don't have any of those.

Anyone know why this is still happening (years after I first saw this), and if there is any solution yet? I am on OS X 10.7.5 and running whatever version of iTunes is the latest that is available via Software Update (the About iTunes option is grayed out as well so I can't check that right now). Any ideas would be much appreciated -- thanks!
One year later, this is happening to me as well. I'm on 10.8.5 and iTunes 11. I have used iTunes since it's inception and don't think I've had this problem until iTunes 11.

Most menu items are greyed out, like Quit and Preferences, but some work, like new Playlist and most items under the File menu. Otherwise iTunes still works, but to quit, I have to force quit or close down the Mac altogether. I see no open dialog boxes anywhere.