Apple was getting insistent about iTunes 11.1.4, so I yielded. Not a good idea: the installation halted halfway through because one of the supporting packages hadn’t started. Okay, fine. The package wouldn’t start. The install claimed to have completed, but then the program wouldn’t start, claiming there was a missing DLL (for those keeping score, it was msvcr80.dll).
WTF are you talking about? I didn’t lose any DLLs. I attempted a reinstall, which wouldn’t even start. When that failed, I called up trusty System Restore, which went 0-3 on the dates chosen. Finally I had to uninstall everything Apple-related on the box, throw out a bunch of files manually, and only then would the installer work.
At least it didn’t screw up the actual iTunes library (7400 tracks, several playlists, and a couple of radio stations).