Thank you, Judy. I will try that. It opened without any problems last night.
Since the latest version of itunes came out, I have another problem with podcasts in my ipod nano (2013 model that I bought in 2014). I have it set for manual management, but it seems to be taking out podcasts I have not chosen to remove (sometimes) and it doesn't show in itunes (I click on the ipod picture and look at "on device" at podcasts) some old podcasts that I thought I'd deleted. These podcasts only show on the ipod itself, so I cannot delete them. I wish there was a way to delete items on the ipod when it's not connected to itunes, since itunes is not showing all the podcasts (under device list of items).
I notice when I'm on my ipod page in itunes, it says "manually manage music and videos." Why doesn't it have the option to manually manage podcasts? I am able to drag and drop podcasts to the ipod, but it does some deleting of some podcasts on its own.
BTW, I had to install, uninstall and install the latest version of itunes 4 times before it recognized my ipod nano. I did it 3 times in one night and it only worked when I uninstalled and installed on another day.
I have an Asus windows laptop (bought in June, 2013) that works very, very well other than the itunes issues (which have only been an issue since the latest update of itunes came out).