11.3 update, podcasts won't update
Updating podcasts had stopped working, so I updated to the latest release (11.3) but it still doesn't work.
iTunes shows "last updated" as current time, so clearly thinks it's updating, but it's not. Sometimes, the update arrow spins round endlessly until I quit the app, but mostly it spins once, accomplishing nothing. I've tried manually updating an individual podcast, nothing; I've tried (from suggestions in other forums) unsubscribing then subscribing again, but it makes no difference.
When I first tried to view all my music by "songs" after updating, the window was empty, with no songs showing in the main music list and in all playlists. They did appear when changing to another view (e.g. albums). This only got fixed when I dragged a new mp3 into the window, and then they all appeared.
Any suggestions other than downloading an alternative app?
Macbook, Mac OS X (10.4.10)