OK, this annoys me all the time because someone will borrow my laptop to watch a DVD in WMP, close the “Now Playing” playlist pane and I can never find how to get it back again. Here’s how you do it:
Click on the drop down arrow under the “Now Playing” tab at the top.
Click on “Show List Pane” and it will come back.
Now I know where to find out how to do it when I forget next time
I'm a web developer based in the East Midlands, UK and if I keep up the current rate, I might have developed 3 million sites by the time I retire