Windows Media Player Bug & Simple Fix

My Auto Playlists in Windows Media Player 10 stopped working suddenly - I kept getting a "property was not found" error. Luckily Google came to the rescue - again: Windows Media Newsgroups - Error code C00D32CA in Windows Media Player

"in ur media library under All Audio, you'll find an untitled song in it, delete it away from your list and you Auto-playlist works.."