Clicking "Buy" button no longer works to purchase a song
I'm suddenly unable to get the "Buy" button to work for any purchase I want to make from the iTunes Store. It was working fine about 3-4 weeks ago when I purchased some music, but now when I click on "Buy" next to a song, it just does nothing. I've tried this for numerous songs by various artists, and it doesn't work for any of them. Any suggestions?
iPod nano