Friday, in the middle of a song, iTunes quit on my laptop. The other programs, the prompt assured me, were fine, but I now suspect that was not the case.
I reopened iTunes, and tried to delete a song. The delete button was grayed out. I had another tune playing, so I clicked the song I didn't want to hear again, but even while it was playing, Delete remained gray.
I rebooted. No joy.
I clicked software update and installed the newest Security and Java updates, hit reboot, but the OS endlessly circled.
I left, drove to Des Moines, returned six hours later, turned on the computer, but no joy. Endless circling.
I have Timecapsule, but really don't want to take the hours to reinstall everything if it is not necessary. Macbook Pro, 15" OS x, latest version installed.
Crossposted to Macworld.